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Alexandrite

Tsarstone collectors guide

gemstones

1. Alexandrite, Cat's Eye and Chrysoberyl Gallery
Alexandrite gemstone buyer and jewelry collector guide holds information on history, lore, value and properties of the chrysoberyl varieties, including alexandrite and cymophane gemstones.
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2.
David Wein is an online fine jewelry store in association with Multicolour.com, the world´s most eclectic favourite online gemstone retailer. David Wein brings together an exquisite range of fine jewelry at exceptional value. Visitors will find an e
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3. A Bibliography of Alexandrite Gemstone Buyer and Collector's Guide
An annotated bibliography of Alexandrite Gemstone Buyer and Collector's Guide
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/chapters/bibliography.html
4. alexandrite for sale at Alexandrite discussion forums | Alexandrite guide
alexandrite for sale at Alexandrite discussion forums | Alexandrite guide
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5. Alexandrite idenitifcation at Alexandrite discussion forums | Alexandrite guide
Alexandrite idenitifcation at Alexandrite discussion forums | Alexandrite guide
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6. color grading alexandrite at Alexandrite discussion forums | Alexandrite guide
color grading alexandrite at Alexandrite discussion forums | Alexandrite guide
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/discussion/post/-color-grading-alexandrite-FRM-167-00002
7. Re: Help with web design at Alexandrite discussion forums | Alexandrite guide
Re: Help with web design at Alexandrite discussion forums | Alexandrite guide
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/discussion/post/-re-help-with-web-design-FRM-157-00001
8. Understanding alexandrite prices, value and appraisal at Alexandrite discussion forums | Alexandrite guide
Understanding alexandrite prices, value and appraisal at Alexandrite discussion forums | Alexandrite guide
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9. AIGS Gemological Laboratory
First professional gemological laboratory to be established in Asia in 19978, - The AIGS Gemological Laboratory is a private, independent gemological laboratory, member of the Thai Gem and Jewelry Traders Association (TGJTA), and The International Colored
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/directory/laboratories/aigs-gemological-laboratory-wdd-003-00014.html
10. Alexandrite
Named after Russian Tsar Alexander II. A highly dichroic, rare variety of chrysoberyl. Emerald green in natural daylight, reddish in violet by artificial light, due to its unusual absorption properties. One of the hardest and most important gemstones. A f
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/chapters/glossary/alexandrite.html
11. Alexandrite substitutes at Alexandrite discussion forums | Alexandrite guide
Alexandrite substitutes at Alexandrite discussion forums | Alexandrite guide
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/discussion/post/alexandrite-substitutes-FRM-324-00004
12. Alexandrite 3.03cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 3.03cts from Tanzania (Tunduru)
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13. Alexandrite Buyer's Guide
Comprehensive guide for buying and evaluating alexandrite gemstones
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14. Alexandrite Effect vs Usambara Effect at Alexandrite discussion forums | Alexandrite guide
Alexandrite Effect vs Usambara Effect at Alexandrite discussion forums | Alexandrite guide
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15. Alexandrite Forum Rules at Alexandrite discussion forums | Alexandrite guide
Alexandrite Forum Rules at Alexandrite discussion forums | Alexandrite guide
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16. Alexandrite Frequently Asked Questions
Answers to frequently asked questions about alexandrite gemstone identification and value.
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17. Alexandrite Garnet at Alexandrite discussion forums | Alexandrite guide
Alexandrite Garnet at Alexandrite discussion forums | Alexandrite guide
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18. Alexandrite Gemstone Buyer and Jewelry Collector Guide
Alexandrite gemstone buyer and jewelry collector guide holds information on history, lore, value and properties of the chrysoberyl varieties, including alexandrite and cymophane gemstones.
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19. Alexandrite Gemstone Collectors Guide, Alexandrite gemstones gallery and Alexandrite mining information at Alexandrite discussion forums | Alexandrite guide
Alexandrite Gemstone Collectors Guide, Alexandrite gemstones gallery and Alexandrite mining information at Alexandrite discussion forums | Alexandrite guide
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20. Alexandrite Myths, Legends and Lore
Collection of myths, legends and lore surrounding the alexandrite gemstone
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21. Alexandrite of Brésilia at Alexandrite discussion forums | Alexandrite guide
Alexandrite of Brésilia at Alexandrite discussion forums | Alexandrite guide
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/discussion/post/alexandrite-of-brjsilia-FRM-414-00001
22. Alexandrite or Diaphanite?
An important study of alexandrite origin and the people involved in the discovery and the naming of alexandrite gemstone
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23. Alexandrite Pear Shape 1.01cts.
Rare Alexandrite (Chrysoberyl) Pear 1.01cts from Tanzania (Tunduru)
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24. Alexandrite Questions, Answers and a Quick Reference
The quick reference to how to select, buy and enjoy alexandrite gemstones and jewelry
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25. Alexandrite Synthetics and Imitations
Guide to synthetic alexandrite production, alexandrite imitations and the differences between natural and synthetic alexandrite
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26. Alexandrite World Occurrences
Study of all the known historical and confirmed alexandrite deposits and mining operations
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27. Alexandrite World Occurrences and Mining Localities
Directory of confirmed findings and current mining localities of alexandrite, cat´s eye and chrysoberyl gemstones
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28. American Gemological Laboratories
American Gemological Laboratories is a unit of Collectors Universe, the leading provider of value-added authentication and grading services for high-value collectibles and gemstones, which was founded in 1986 and publicly traded since 1999. In 1977, Ameri
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29. Angelica at Alexandrite discussion forums | Alexandrite guide
Angelica at Alexandrite discussion forums | Alexandrite guide
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/discussion/topic/angelica-FRM-351
30. Appraisals at Alexandrite discussion forums | Alexandrite guide
Appraisals at Alexandrite discussion forums | Alexandrite guide
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/discussion/topic/appraisals-FRM-280
31. Are there any other gemstones which change color?
Several other well known gemstones, including diaspore, sapphire, garnet and spinel may also change color as a function of the light source but the color change of top alexandrites is distinctive and attractive under any light conditions.
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32. Are there any other gemstones which change color? at Alexandrite discussion forums | Alexandrite guide
Are there any other gemstones which change color? at Alexandrite discussion forums | Alexandrite guide
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/discussion/topic/are-there-any-other-gemstones-which-change-color-FRM-341
33. Attractive Tanzanian Chrysoberyl Heart.
Hard to find Chrysoberyl (Chrysoberyl) Heart 2.49cts from Tanzania (Tunduru)
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34. Beautiful Color / Cut 13.6x9.75mm Chrysoberyl
Rare Chrysoberyl (Chrysoberyl) Oval 5.86cts from Tanzania (Tunduru)
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35. Beautiful Sharp Eye Chrysoberyl Ov. 2.01cts.
Hard to find Cymophane (Chrysoberyl) Oval 2.01cts from Madagascar (Ilakaka)
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36. Beautiful Sharp Eye Chrysoberyl Ov. 2.67cts.
Hard to find Cymophane (Chrysoberyl) Oval 2.67cts from Madagascar (Ilakaka)
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37. Beautuful Color Change Alexandrite 3.38cts.
Extremely rare Alexandrite (Chrysoberyl) Trillion 3.38cts from Tanzania (Tunduru)
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38. Book Announcement: Russian Alexandrites by Karl Schmetzer at Alexandrite discussion forums | Alexandrite guide
Book Announcement: Russian Alexandrites by Karl Schmetzer at Alexandrite discussion forums | Alexandrite guide
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39. Book Announcement: Russian Alexandrites by Karl Schmetzer at Alexandrite discussion forums | Alexandrite guide
Book Announcement: Russian Alexandrites by Karl Schmetzer at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2010-08-11 04:12:00
/discussion/topic/book-announcement-russian-alexandrites-by-karl-sch-FRM-361
40. Book review: Russian Alexandrites at Alexandrite discussion forums | Alexandrite guide
Book review: Russian Alexandrites at Alexandrite discussion forums | Alexandrite guide
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41. Book review: Russian Alexandrites at Alexandrite discussion forums | Alexandrite guide
Book review: Russian Alexandrites at Alexandrite discussion forums | Alexandrite guide
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42. Book review: Russian Alexandrites at Alexandrite discussion forums | Alexandrite guide
Book review: Russian Alexandrites at Alexandrite discussion forums | Alexandrite guide
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/discussion/post/book-review-russian-alexandrites-FRM-362-00002
43. Brazilian alexandrite, Hematita
Information about Brazilian alexandrite findings and mining in Hematita, Brazil.
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/localities/alexandrite-locality-brazil-minas-gerais-hematita.html
44. Brazilian alexandrite, Teafilo Otoni
Information about Brazilian alexandrite findings and mining in Novo Cruzeiro, Brazil.
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/localities/alexandrite-locality-brazil-minas-gerais-teofilo-otoni.html
45. Bright 13.6mm Chrysoberyl Trillion 8.25cts.
Rare Chrysoberyl (Chrysoberyl) Trillion 8.25cts from Tanzania (Tunduru)
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46. Bright Alexandrite Oval 5.16cts Super Value!
Extremely rare Alexandrite (Chrysoberyl) Oval 5.16cts from Tanzania (Tunduru)
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47. Browse gemstones tagged with color change gemstone at Alexandrite discussion forums | Alexandrite guide
Browse gemstones tagged with color change gemstone at Alexandrite discussion forums | Alexandrite guide
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48. Can you love something for the sake of rarity? at Alexandrite discussion forums | Alexandrite guide
Can you love something for the sake of rarity? at Alexandrite discussion forums | Alexandrite guide
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49. Carat
A unit employed in weighing diamonds, pearls, and other gemstones, which formerly ranged from 185.5 to 205.3 milligrams. Now the International metric carat is equal to 0.2 gram, or 200 milligrams and this is the standard in a majority of countries. Abbrev
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50. Certified Fine Natural Alexandrite .2.60cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 2.6cts from India (Deobhog area)
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51. Certified Fine Natural Alexandrite 1.24cts.
Rare Alexandrite (Chrysoberyl) Oval 1.24cts from India (Deobhog area)
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52. Certified Fine Natural Alexandrite 1.41cts.
Rare Alexandrite (Chrysoberyl) Oval 1.41cts from India (Deobhog area)
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53. Certified Fine Natural Alexandrite 4.16cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 4.16cts from Tanzania (Tunduru)
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54. Certified Moderate Change Alexandrite 3.20cts
Extremely rare Alexandrite (Chrysoberyl) Oval 3.19cts from Tanzania (Tunduru)
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55. Certified Moderate Color Change Alexandrite
Rare Alexandrite (Chrysoberyl) Oval 1.7cts from Tanzania (Tunduru)
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56. Certified Natural Alexandrite Trillion 2.03cts.
Extremely rare Alexandrite (Chrysoberyl) Triangle 2.03cts from India (Deobhog area)
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/gemstones/natural-alexandrite-triangle-2-03-faceted_yax380aa
57. Certified Natural 7.0mm Alexandrite 2.16cts.
Extremely rare Alexandrite (Chrysoberyl) Round 2.16cts from India (Deobhog area)
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58. Certified Natural Alexandrite 2.20cts.
Extremely rare Alexandrite (Chrysoberyl) Fancy 2.2cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-fancy-2-2-faceted_xax320bh
59. Certified Natural Alexandrite Cushion 4.12cts
Extremely rare Alexandrite (Chrysoberyl) Cushion 4.12cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-cushion-4-12-faceted_AX4180aa
60. Certified Natural Alexandrite Oval 1.01cts.
Rare Alexandrite (Chrysoberyl) Oval 1.01cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-1-01-faceted_yax361aa
61. Certified Natural Alexandrite Oval 1.03cts.
Rare Alexandrite (Chrysoberyl) Oval 1.03cts from India (Deobhog area)
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62. Certified Natural Alexandrite Oval 1.03cts.
Rare Alexandrite (Chrysoberyl) Oval 1.03cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-1-03-faceted_yax239ah
63. Certified Natural Alexandrite Oval 1.09cts.
Rare Alexandrite (Chrysoberyl) Oval 1.09cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-1-09-faceted_yax469ad
64. Certified Natural Alexandrite Oval 1.19cts
Rare Alexandrite (Chrysoberyl) Oval 1.19cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-1-19-faceted_yax373aa
65. Certified Natural Alexandrite Oval 1.23cts
Rare Alexandrite (Chrysoberyl) Oval 1.23cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-1-23-faceted_yax375aa
66. Certified Natural Alexandrite Oval 1.31cts.
Rare Alexandrite (Chrysoberyl) Oval 1.31cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-1-31-faceted_yax232aa
67. Certified Natural Alexandrite Oval 1.33cts.
Rare Alexandrite (Chrysoberyl) Oval 1.33cts from Tanzania (Tunduru)
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68. Certified Natural Alexandrite Oval 1.34cts.
Rare Alexandrite (Chrysoberyl) Oval 1.34cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-1-34-faceted_yax469af
69. Certified Natural Alexandrite Oval 1.85cts.
Rare Alexandrite (Chrysoberyl) Oval 1.85cts from Tanzania (Tunduru)
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70. Certified Natural Alexandrite Oval 2.04cts
Extremely rare Alexandrite (Chrysoberyl) Oval 2.04cts from India (Deobhog area)
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71. Certified Natural Alexandrite Oval 2.70cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 2.7cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-2-7-faceted_YAX383aa
72. Certified Natural Alexandrite Oval 4.81cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 4.81cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-oval-4-81-faceted_AX4218aa
73. Certified Natural Alexandrite Pear 3.06ct.
Extremely rare Alexandrite (Chrysoberyl) Pear 3.06cts from Tanzania (Tunduru)
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74. Certified Strong Change Alexandrite Oval 3.52cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 3.52cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-oval-3-52-faceted_XAX333ad
75. Certified Strong Change Alexandrite 1.79cts.
Rare Alexandrite (Chrysoberyl) Oval 1.79cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-oval-1-79-faceted_xax320bl
76. Certified Strong Change Alexandrite 21.23cts
Extremely rare Alexandrite (Chrysoberyl) Cushion 21.23cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-cushion-21-23-faceted_AX1161aa
77. Certified Strong Change Alexandrite 26.75cts
Extremely rare Alexandrite (Chrysoberyl) Cushion 26.75cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-cushion-26-75-faceted_AX1159aa
78. Certified Strong Color Change Alexandrite
Extremely rare Alexandrite (Chrysoberyl) Oval 3.06cts from Asia (Andhra Pradesh)
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/gemstones/natural-alexandrite-oval-3-06-faceted_yax588aa
79. Certified Strong Color Change Alexandrite 1.04cts.
Rare Alexandrite (Chrysoberyl) Oval 1.04cts from India (Deobhog area)
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80. Certified Strong Color Change Alexandrite Ov.
Rare Alexandrite (Chrysoberyl) Oval 1.63cts from Tanzania (Tunduru)
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81. Cettified Strong Change Alexandrite Oval 2.15cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 2.15cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-oval-2-15-faceted_XAX335ab
82. Ceylon alexandrite, Horana
Information about Ceylon alexandrite findings and mining in Horana, Sri Lanka.
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/localities/alexandrite-locality-sri-lanka-western-province-horana.html
83. Chatoyancy
An optical effect, possessed by certain translucent gemstones in reflecting light, in which a movable, wavy or silky sheen is concentrated in a narrow band of white light that changes its position, when the gem is turned. This is a characterized of cat's
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84. China Stone
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/directory/gemstone-dealers/china-stone-wdd-003-00030.html
85. Chrysoberyl Cat's Eye Oval 2.53cts.
Hard to find Cymophane (Chrysoberyl) Oval 2.53cts from Tanzania (Tunduru)
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/gemstones/natural-cymophane-oval-2-53-traditional_ZACB1508a
86. Chrysoberyl Classification and Properties
A comprehensive guide to the chrysoberyl family and it's varieties, including alexandrite and cymophane gemstones
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/chapters/chapter4/index.html
87. Chrysoberyl rough weighing over 2984.9 ct was valued at 175.000 USD at Alexandrite discussion forums | Alexandrite guide
Chrysoberyl rough weighing over 2984.9 ct was valued at 175.000 USD at Alexandrite discussion forums | Alexandrite guide
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/discussion/post/chrysoberyl-rough-weighing-over-2984-9-ct-was-valued-at-175-000-usd-FRM-340-00002
88. Chrysoberyl Species and Variety
Information about the chrysoberyl mineral, it's properties, varieties and history
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/chapters/chapter3/index.html
89. Clarity grading
The classification of fashioned gemstones or diamonds according to their clarity using the standard nomenclature of terms: flawless, pure, clean, perfect (for top grade). VVS (very very slightly included), VS (very slightly included), SI (slightly include
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/chapters/glossary/clarity-grading.html
90. Classic alexandrite story at Alexandrite discussion forums | Alexandrite guide
Classic alexandrite story at Alexandrite discussion forums | Alexandrite guide
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/discussion/post/classic-alexandrite-story-FRM-175-00001
91. Colburn Earth Science Museum
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/directory/museums/colburn-earth-science-museum-wdd-003-00040.html
92. Color change
There are four major methods of changing the colors of gemstones. These are surface painting or foiling the back, oiling, coating, impregnating, staining of porous stones, heat treatment, and irradiation by particles of atomic size and X-rays. The color c
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/chapters/glossary/color-change.html
93. Color change garnet vs Alexandrite at Alexandrite discussion forums | Alexandrite guide
Color change garnet vs Alexandrite at Alexandrite discussion forums | Alexandrite guide
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/discussion/post/color-change-garnet-vs-alexandrite-FRM-341-00002
94. Color change natural tourmaline at Alexandrite discussion forums | Alexandrite guide
Color change natural tourmaline at Alexandrite discussion forums | Alexandrite guide
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/discussion/post/color-change-natural-tourmaline-FRM-282-00006
95. Colored Stone
Colored Stone is owned by Interweave Press. Included among its magazines are Beadwork, Knits, American Artist, and FiberArts. In business since 1975, Interweave Press publishes a growing number of magazines and many books related to fiber, thread, needlew
HTML, 64 Kb, 2009-03-30 11:20:06
/directory/publications/colored-stone-wdd-003-00035.html
96. Colour change not quite the same thing as pleochroism at Alexandrite discussion forums | Alexandrite guide
Colour change not quite the same thing as pleochroism at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2009-04-01 15:03:00
/discussion/post/colour-change-not-quite-the-same-thing-as-pleochroism-FRM-336-00002
97. Colour change garnet at Alexandrite discussion forums | Alexandrite guide
Colour change garnet at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2009-04-05 13:17:20
/discussion/topic/colour-change-garnet-FRM-342
98. Colour change garnet, Malaia garnet and malaya garnet at Alexandrite discussion forums | Alexandrite guide
Colour change garnet, Malaia garnet and malaya garnet at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2009-04-08 08:21:00
/discussion/post/colour-change-garnet-malaia-garnet-and-malaya-garnet-FRM-342-00002
99. Colour change sapphire anyone? at Alexandrite discussion forums | Alexandrite guide
Colour change sapphire anyone? at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2008-10-26 13:01:00
/discussion/post/colour-change-sapphire-anyone-FRM-282-00005
100. David Wein
David Wein is an online fine jewelry store in association with Multicolour.com, the world´s most eclectic favourite online gemstone retailer. David Wein brings together an exquisite range of fine jewelry at exceptional value. Visitors will find an e
HTML, 64 Kb, 2009-03-15 01:14:43
/directory/jewelers/david-wein-wdd-003-00005.html
101. Different colors of alexandrite at Alexandrite discussion forums | Alexandrite guide
Different colors of alexandrite at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2009-08-06 10:37:53
/discussion/post/different-colors-of-alexandrite-FRM-347-00001
102. Emerald Cut Alexandrite 5.47cts.
Extremely rare Alexandrite (Chrysoberyl) Octagon 5.47cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-octagon-5-47-faceted_XAX331aa
103. Fine Color/Cut 8x6mm Chrysoberyl Oval
Hard to find Chrysoberyl (Chrysoberyl) Oval 1.89cts from Tanzania (Tunduru)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-chrysoberyl-oval-1-89-faceted_XCB135ab
104. Fine Color/Cut 9.2x6.5 Chrysoberyl Oval
Hard to find Chrysoberyl (Chrysoberyl) Oval 2.47cts from Tanzania (Tunduru)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-chrysoberyl-oval-2-47-faceted_YCB126bo
105. Fine Cut / Good Clarity Alexandrite 3.03cts.
Extremely rare Alexandrite (Chrysoberyl) Octagon 3.03cts from Tanzania (Tunduru)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-alexandrite-octagon-3-03-faceted_xax329ab
106. Fine Cut Chrysoberyl Trillion 2.84cts.
Hard to find Chrysoberyl (Chrysoberyl) Trillion 2.84cts from Tanzania (Tunduru)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-chrysoberyl-trillion-2-84-faceted_YCB111ab
107. Fine Sharp Chrysoberyl Cat's Eye 4.40cts.
Hard to find Cymophane (Chrysoberyl) Oval 4.4cts from Madagascar (Ilakaka)
HTML, 14 Kb, -0001-11-30 00:00:00
/gemstones/natural-cymophane-oval-4-4-traditional_CB1949a
108. Fine Sharp Chrysoberyl Cats Eye 2.25cts.
Hard to find Cymophane (Chrysoberyl) Oval 2.25cts from Madagascar (Ilakaka)
HTML, 14 Kb, -0001-11-30 00:00:00
/gemstones/natural-cymophane-oval-2-25-traditional_CB1949d
109. Fine Strong Color Change Alexandrite 1.23ct.
Rare Alexandrite (Chrysoberyl) Oval 1.23cts from India (Deobhog area)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-alexandrite-oval-1-23-faceted_yax152aa
110. Fine Strong Color Change Alexandrite Oval
Rare Alexandrite (Chrysoberyl) Oval 1.04cts from India (Deobhog area)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-alexandrite-oval-1-04-faceted_yax507aa
111. Fine Strong Color Change Alexandrite Round
Rare Alexandrite (Chrysoberyl) Round 1.19cts from India (Deobhog area)
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/gemstones/natural-alexandrite-round-1-19-faceted_yax508aa
112. Flux-fusion method
This is a technique used to make certain synthetic gemstones such as emerald, ruby, spinel, quartz, Alexandrite, YAG, etc., man-made crystals growing in a high melting solvent or flux. The material or composition of desired synthetic crystal (beryllium an
HTML, 24 Kb, 2008-07-20 13:04:23
/chapters/glossary/flux-fusion-method.html
113. Gem Cut 11.7x8mm Chrysoberyl Oval 4.53cts.
Hard to find Chrysoberyl (Chrysoberyl) Oval 4.53cts from Tanzania (Tunduru)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-chrysoberyl-oval-4-53-faceted_ycb146ng
114. Gem Studies Lab
GAA was formed in Sydney, on the 29th October 1945, the Association has been responsible for producing Australia’s gemmologists by educating and updating members of the gem and jewellery industry and the general public, about all aspects of gemstones an
HTML, 66 Kb, 2009-03-15 02:18:56
/directory/laboratories/gem-studies-lab-wdd-003-00009.html
115. Gemmy Color Change Alexandrite Oval 5.08cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 5.08cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-oval-5-08-faceted_AX4139aa
116. GemResearch Swisslab
Private gemological research company focused on the characterization of high-quality gems from newly opened mines.
HTML, 65 Kb, 2009-03-15 03:01:18
/directory/laboratories/gemresearch-swisslab-wdd-003-00016.html
117. Gemstone
Any rough mineral or other material natural or synthetic, which possesses the necessary attractiveness, brilliance, beauty, rarity, color dispersion, refraction, color or colorless, flawless, portability, fashionably, and durability for use in gem industr
HTML, 25 Kb, 2008-07-20 13:04:30
/chapters/glossary/gemstone.html
118. Gemstone cuts
Any forms or styles used in the fashioning of gemstones such as antique cut, brilliant cut, emerald cut, baguette, cabochon, rose cut, etc.
HTML, 23 Kb, 2008-07-20 13:04:32
/chapters/glossary/gemstone-cuts.html
119. Gemsuite
HTML, 63 Kb, 2009-03-30 08:08:40
/directory/gemstone-dealers/gemsuite-wdd-003-00033.html
120. Glossary of Terms for Alexandrite Gemstone Buyer and Collector's Guide
Glossary of terms that have been discussed or mentioned at Alexandrite gemstone buyer and collectors guide
HTML, 38 Kb, 2008-07-20 13:02:49
/chapters/glossary/index.html
121. Gubelin Gemological Laboratories
Dr. Eduard J. Gubelin, one of the forefathers of modern gemology, and who was a Founding Organizing Member as well as an Honorary Member of the International Colored Gemstone Association (ICA), passed away in Lucerne, Switzerland in March at the age of 91
HTML, 66 Kb, 2009-03-15 03:05:18
/directory/laboratories/gubelin-gemological-laboratories-wdd-003-00017.html
122. Hardness
The quality of resistance or property of minerals, gemstones, etc., which is determined by reference to an empirical scale of standard of minerals. Hardness is the resistance of a mineral offered to abrasion or scratching (scelerometric). The absolute har
HTML, 25 Kb, 2008-07-20 13:04:40
/chapters/glossary/hardness.html
123. Hong Kong Gems Laboratory
Established in 1987, Hong Kong Gems Laboratory is well equipped and recognized by gemologists and industry professionals. Full-service lab offers FTIR spectrophotometerservice, which provides evidence for jadeite jade and diamond, corundum, emerald and ot
HTML, 65 Kb, 2009-03-15 02:25:21
/directory/laboratories/hong-kong-gems-laboratory-wdd-003-00011.html
124. How can I add my gemstone? at Alexandrite discussion forums | Alexandrite guide
How can I add my gemstone? at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2006-08-29 20:23:00
/discussion/topic/how-can-i-add-my-gemstone-FRM-156
125. How can I spot the difference between a natural and a synthetic alexandrite?
HTML, 26 Kb, 2008-07-29 08:11:26
/chapters/faq/how-can-i-spot-the-difference-between-a-natural-and-a-synthetic-alexandrite.html
126. Imitation
To result something of a genuine article or natural gemstone or simulate it from any material that imitate by its color, the appearance of a natural gemstone. Imitation gemstone having wholly different physical properties and chemical composition, and hen
HTML, 25 Kb, 2008-07-20 13:04:51
/chapters/glossary/imitation.html
127. Is alexandrite the most expensive gemstone in the world?
Along with diamonds, rubies, and emeralds, top quality alexandrites are among the most expensive gemstones in the world. In larger sizes over 4.00 or 5.00cts., Burmese rubies are more rare and expensive than alexandrites but in sizes below 1.00cts., alexa
HTML, 26 Kb, 2008-07-29 08:11:10
/chapters/faq/is-alexandrite-the-most-expensive-gemstone-in-the-world.html
128. Is alexandrite the most expensive gemstone in the world? at Alexandrite discussion forums | Alexandrite guide
Is alexandrite the most expensive gemstone in the world? at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2013-01-22 19:50:31
/discussion/post/is-alexandrite-the-most-expensive-gemstone-in-the-world-FRM-458-00001
129. Is alexandrite the most expensive gemstone in the world? at Alexandrite discussion forums | Alexandrite guide
Is alexandrite the most expensive gemstone in the world? at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2013-04-09 07:24:45
/discussion/topic/is-alexandrite-the-most-expensive-gemstone-in-the--FRM-459
130. Is there a difference between Russian and Brazilian Alexandrite gemstones? at Alexandrite discussion forums | Alexandrite guide
Is there a difference between Russian and Brazilian Alexandrite gemstones? at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2009-03-19 22:26:42
/discussion/topic/is-there-a-difference-between-russian-and-brazilia-FRM-303
131. Jewel
A fashioned ornament for personal adornment, which is made of noble metals mounted with natural, synthetic, or imitation gemstones.
HTML, 23 Kb, 2008-07-20 13:05:05
/chapters/glossary/jewel.html
132. Lapidary
A craftsman who cuts, polishes, and engraves colored gemstones, other than diamonds. A worker who cuts, and polishes diamonds is known as a diamond cutter.
HTML, 23 Kb, 2008-07-20 13:05:29
/chapters/glossary/lapidary.html
133. Large Collector Alexandrite Oval 6.23cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 6.23cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-oval-6-23-faceted_AX1874b
134. Lively Daylight Green Alexandrite 2.55cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 2.55cts from Tanzania (Tunduru)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-alexandrite-oval-2-55-faceted_XAX333ae
135. Luminescence
The emission of certain visible wavelengths of light from a substance other than thermal process, which are used as diagnostic determination of gemstones. It is caused by the emission of photons, when an exited atom within the substance returns to the gro
HTML, 25 Kb, 2008-07-20 13:05:35
/chapters/glossary/luminescence.html
136. Methods of Producing Synthetic Alexandrite
Information about melt and flux techniques used for the synthetic alexandrite manufacturing
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/chapters/chapter7/methods-of-producing-synthetic-alexandrite.html
137. Multicolour Gems
HTML, 63 Kb, 2009-03-06 16:25:54
/directory/gemstone-dealers/multicolour-gems-wdd-003-00001.html
138. Natural alexandrite investment potential? at Alexandrite discussion forums | Alexandrite guide
Natural alexandrite investment potential? at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2010-11-27 20:24:36
/discussion/topic/natural-alexandrite-investment-potential-FRM-380
139. Natural Alexandrite Ring at Alexandrite discussion forums | Alexandrite guide
Natural Alexandrite Ring at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2009-09-16 05:59:23
/discussion/post/natural-alexandrite-ring-FRM-171-00003
140. Needlelike (silk)
Acicular a needle form of inclusions in gemstones.
HTML, 23 Kb, 2008-07-20 13:05:56
/chapters/glossary/needlelike-silk.html
141. Nice Change Natural Alexandrite Oval 6.36cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 6.36cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-oval-6-36-faceted_AX4225aa
142. Nice Chrysoberyl Pear Shape 2.64cts.
Hard to find Chrysoberyl (Chrysoberyl) Pear 2.64cts from Tanzania (Tunduru)
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/gemstones/natural-chrysoberyl-pear-2-64-faceted_YAX165ad
143. Nice Color Change Alexandrite Oval 2.09cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 2.09cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-2-09-faceted_xax327ab
144. Nice Color Change Alexandrite Oval 7.46cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 7.46cts from Tanzania (Tunduru)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-alexandrite-oval-7-46-faceted_XAX334aa
145. Nice Color Tanzanian Chrysoberyl 3.35ct.
Hard to find Chrysoberyl (Chrysoberyl) Oval 3.35cts from Tanzania (Tunduru)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-chrysoberyl-oval-3-35-faceted_ycb146jy
146. Nice Emerald Cut Chrysoberyl 2.56cts.
Hard to find Chrysoberyl (Chrysoberyl) Octagon 2.56cts from Tanzania (Tunduru)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-chrysoberyl-octagon-2-56-faceted_XCB135ac
147. Nice Emerald Cut Chrysoberyl 8.18cts.
Rare Chrysoberyl (Chrysoberyl) Octagon 8.18cts from Sri Lanka (Balangoda)
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/gemstones/natural-chrysoberyl-octagon-8-18-faceted_vcb207ab
148. Nice Natural Alexandrite Oval 8.94cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 8.94cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-oval-8-94-faceted_AX4224aa
149. Obtala Resources agrees licensing deal with Gemstones of Africa at Alexandrite discussion forums | Alexandrite guide
Obtala Resources agrees licensing deal with Gemstones of Africa at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2009-03-16 03:40:00
/discussion/topic/obtala-resources-agrees-licensing-deal-with-gemsto-FRM-284
150. Outstanding 10x8.7mm Chrysoberyl Ov 3.72cts
Hard to find Chrysoberyl (Chrysoberyl) Oval 3.72cts from Tanzania (Tunduru)
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/gemstones/natural-chrysoberyl-oval-3-72-faceted_ycb146np
151. Outstanding 11.8x9mm Chrysoberyl Oval 5.46cts
Rare Chrysoberyl (Chrysoberyl) Oval 5.46cts from Tanzania (Tunduru)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-chrysoberyl-oval-5-46-faceted_ycb146nw
152. Outstanding 11x8mm Chrysoberyl Pear 3.43cts
Hard to find Chrysoberyl (Chrysoberyl) Pear 3.43cts from Tanzania (Tunduru)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-chrysoberyl-pear-3-43-faceted_ycb146nq
153. Outstanding Color/Cut 11x9mm Chrysoberyl Oval
Rare Chrysoberyl (Chrysoberyl) Oval 6.02cts from Tanzania (Tunduru)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-chrysoberyl-oval-6-02-faceted_YCB144aa
154. Pala International
HTML, 64 Kb, 2009-03-30 07:51:42
/directory/gemstone-dealers/pala-international-wdd-003-00032.html
155. Pegmatite
A light-colored, coarse-grained igneous rock from granite clan containing orthoclase, quartz, microline, mica, gemstones, and many ferromagnesian minerals resulting from slow solidification. Pegmatite is occurring place of many uncommon gem minerals such
HTML, 24 Kb, 2008-07-20 13:06:14
/chapters/glossary/pegmatite.html
156. Phenomenal gemstones at Alexandrite discussion forums | Alexandrite guide
Phenomenal gemstones at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2010-10-18 19:20:37
/discussion/topic/phenomenal-gemstones-FRM-378
157. Phenomenon
A special optical occurrence, or circumstance observed or are visible in certain gemstones such as chatoyancy, asterism, or play of color, adularescence, girasol, labradorescence, opalescence, schiller, etc.
HTML, 24 Kb, 2008-07-20 13:06:20
/chapters/glossary/phenomenon.html
158. Physical properties
Physical properties of gemstones are extremely important in understanding geological phenomena in synthesizing new materials, and identification of minerals. Physical properties and chemical composition of minerals change with temperature and pressure. P
HTML, 24 Kb, 2008-07-20 13:06:22
/chapters/glossary/physical-properties.html
159. Quality Alexandrite Pear Shape 2.12cts.
Extremely rare Alexandrite (Chrysoberyl) Pear 2.12cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-pear-2-12-faceted_XAX333af
160. Quality Natural Alexandrite Cushion 2.70cts.
Extremely rare Alexandrite (Chrysoberyl) Cushion 2.7cts from India (Deobhog area)
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/gemstones/natural-alexandrite-cushion-2-7-faceted_YAX129aa
161. Quality Orissa Alexandrite Oval 1.60cts.
Rare Alexandrite (Chrysoberyl) Oval 1.6cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-1-6-faceted_xax321aa
162. Re: Are there any other gemstones which change color? at Alexandrite discussion forums | Alexandrite guide
Re: Are there any other gemstones which change color? at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2007-07-26 12:09:00
/discussion/post/re-are-there-any-other-gemstones-which-change-color-FRM-282-00002
163. Re: Are there any other gemstones which change color? at Alexandrite discussion forums | Alexandrite guide
Re: Are there any other gemstones which change color? at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2007-06-11 02:03:00
/discussion/post/re-are-there-any-other-gemstones-which-change-color-FRM-282-00001
164. Re: Browse gemstones tagged with color change gemstone at Alexandrite discussion forums | Alexandrite guide
Re: Browse gemstones tagged with color change gemstone at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2010-01-30 00:24:06
/discussion/post/re-browse-gemstones-tagged-with-color-change-gemstone-FRM-355-00001
165. Re: Buying Alexandrite at Alexandrite discussion forums | Alexandrite guide
Re: Buying Alexandrite at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2007-08-02 15:09:15
/discussion/post/re-buying-alexandrite-FRM-134-00001
166. Re: Zandrite at Alexandrite discussion forums | Alexandrite guide
Re: Zandrite at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2009-03-28 12:20:00
/discussion/post/re-zandrite-FRM-324-00002
167. Red color change garnet at Alexandrite discussion forums | Alexandrite guide
Red color change garnet at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2008-09-16 02:21:00
/discussion/post/red-color-change-garnet-FRM-282-00003
168. Russian Alexandrite, Malyshevskoye
Information about Russian alexandrite findings and mining in Malyshevskoye, Russia.
HTML, 29 Kb, 2008-07-31 07:34:54
/localities/alexandrite-locality-russia-malyshevskoye-deposit.html
169. Sharp Chrysoberyl Cat's Eye Oval 2.29cts.
Hard to find Cymophane (Chrysoberyl) Oval 2.29cts from Madagascar (Ilakaka)
HTML, 14 Kb, -0001-11-30 00:00:00
/gemstones/natural-cymophane-oval-2-29-traditional_CB1949c
170. Sharp Chrysoberyl Cat's Eye Oval 2.52cts.
Hard to find Cymophane (Chrysoberyl) Oval 2.52cts from Madagascar (Ilakaka)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-cymophane-oval-2-52-traditional_CB1949b
171. Sharp Chrysoberyl Cats Eye 5.90cts.
Rare Cymophane (Chrysoberyl) Oval 5.9cts from Tanzania (Tunduru)
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/gemstones/natural-cymophane-oval-5-9-traditional_CB4272aa
172. Sharp Chrysoberyl Cats Eye Cab 3.29cts.
Hard to find Cymophane (Chrysoberyl) Oval 3.29cts from Tanzania (Tunduru)
HTML, 14 Kb, -0001-11-30 00:00:00
/gemstones/natural-cymophane-oval-3-29-traditional_YCB133ac
173. Spectroscope
A small hand optical device for obtaining and visually observing spectrum, in which collimated light passes through a narrow slit onto either a prism or diffraction grating, its spectrum being viewed by a lens system or telescope. The angle between the c
HTML, 24 Kb, 2008-07-20 13:06:53
/chapters/glossary/spectroscope.html
174. Spectrum
Any array of electromagnetic visible light ordered according to its constituent wavelengths or colors, when the white light is dispersed by a prism or diffraction grating, ranging from about 750 to about 400 nm. The spectra can obtained by means of spectr
HTML, 27 Kb, 2008-07-20 13:06:54
/chapters/glossary/spectrum.html
175. SSEF
SSEF laboratory offers analysis of precious stones and issue test reports for diamonds, coloured stones and pearls. It was recognized in 1978 by the International Confederation of Jewellers and Goldsmiths (CIBJO and also a member of the International Colo
HTML, 65 Kb, 2009-03-15 03:08:12
/directory/laboratories/ssef-wdd-003-00018.html
176. Strong Change Natural Alexandrite 10.20cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 10.2cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-oval-10-2-faceted_AX4219aa
177. Strong Change Natural Alexandrite 13.55cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 13.55cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-oval-13-55-faceted_AX4220aa
178. Strong Change Natural Alexandrite 7.24cts.
Extremely rare Alexandrite (Chrysoberyl) Pear 7.24cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-pear-7-24-faceted_AX4221aa
179. Strong Change Natural Alexandrite 8.08cts.
Extremely rare Alexandrite (Chrysoberyl) Pear 8.08cts from Tanzania (Tunduru)
HTML, 15 Kb, -0001-11-30 00:00:00
/gemstones/natural-alexandrite-pear-8-08-faceted_AX4222aa
180. Strong Color Change 9.2x4.6mm Alexandrite
Extremely rare Alexandrite (Chrysoberyl) Fancy 2.05cts from Tanzania (Tunduru)
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/gemstones/natural-alexandrite-fancy-2-05-faceted_yax520aa
181. Strong Color Change Alex. Oval 2.10cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 2.1cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-2-1-faceted_YAX488aa
182. Strong Color Change Alexandrite Cushion
Extremely rare Alexandrite (Chrysoberyl) Cushion 21.41cts from India (Deobhog area)
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/gemstones/natural-alexandrite-cushion-21-41-faceted_ax6302aa
183. Strong Color Change Alexandrite Oval
Rare Alexandrite (Chrysoberyl) Oval 1.05cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-1-05-faceted_yax503aa
184. Strong Color Change Alexandrite Oval .47ct.
Rare Alexandrite (Chrysoberyl) Oval 0.47cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-0-47-faceted_yax201ap
185. Strong Color Change Alexandrite Oval .96ct.
Rare Alexandrite (Chrysoberyl) Oval 0.96cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-0-96-faceted_yax227aa
186. Strong Color Change Alexandrite Oval 1.19cts.
Rare Alexandrite (Chrysoberyl) Oval 1.19cts from India (Deobhog area)
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187. Strong Color Change Alexandrite Oval 3.06cts
Extremely rare Alexandrite (Chrysoberyl) Oval 3.06cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-3-06-faceted_yax514aa
188. Strong Color Change Alexandrite Tril 1.95cts.
Rare Alexandrite (Chrysoberyl) Trillion 1.95cts from India (Deobhog area)
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189. Strong Color Change Alexandrite Trillion
Rare Alexandrite (Chrysoberyl) Trillion 1.21cts from India (Deobhog area)
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/gemstones/natural-alexandrite-trillion-1-21-faceted_yax504aa
190. Strong Color Change Oval Alexandrite 1.47ct.
Rare Alexandrite (Chrysoberyl) Oval 1.47cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-1-47-faceted_xax320cc
191. Stunning 10mm Chrysoberyl Cushion 5.67cts
Rare Chrysoberyl (Chrysoberyl) Cushion 5.67cts from Tanzania (Tunduru)
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192. Stunning Chrysoberyl Cat's Eye Round 6.10cts
Rare Cymophane (Chrysoberyl) Round 6.1cts from Tanzania (Tunduru)
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/gemstones/natural-cymophane-round-6-1-traditional_CB4172a
193. Stunning Chrysoberyl Trillion 13.75cts.
Extremely rare Chrysoberyl (Chrysoberyl) Trillion 13.75cts from Sri Lanka (Horana)
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/gemstones/natural-chrysoberyl-trillion-13-75-faceted_VCB207aa
194. Stunning Color and Cut 11.7x10.8mm Chrysoberyl
Rare Chrysoberyl (Chrysoberyl) Oval 6.13cts from Tanzania (Tunduru)
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/gemstones/natural-chrysoberyl-oval-6-13-faceted_ycb146dp
195. Synthetic
Artificially made substance that has the same appearance, physical properties and chemical compound as its natural counterpart mineral. Some synthetic stones have no counterpart in nature they are synthetic gemstones except if they used as an imitation fo
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196. Synthetic alexandrite identification at Alexandrite discussion forums | Alexandrite guide
Synthetic alexandrite identification at Alexandrite discussion forums | Alexandrite guide
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/discussion/topic/synthetic-alexandrite-identification-FRM-325
197. Synthetic gemstone growth techniques
Information about melt, solution growth and vapour deposition techniques used for synthetic gemstones manufacturing
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/chapters/chapter7/synthetic-gemstone-growth-techniques.html
198. Tanzanian alexandrite, Tunduru
Information about Tanzanian alexandrite findings and mining in Tunduru, Tanzania.
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/localities/alexandrite-locality-tanzania-tunduru.html
199. The Alexandrite Effect
Discussion about the alexandrite effect as a non-color-constancy phenomenon from the color theory perspective
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/chapters/chapter5/index.html
200. The Gem and Jewelry Institute of Thailand
IT Gem Testing Laboratory (GIT-GTL), has been accredited by The World Jewellery Confederation (CIBJO) as the CIBJO Registered Laboratory since May 2000.
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/directory/laboratories/the-gem-and-jewelry-institute-of-thailand-wdd-003-00015.html
201. The prophetic Russian stone - Alexandrite
History of discovering alexandrite gemstone and the affect it had on the stone's name and the gemstone's value
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/chapters/chapter1/index.html
202. The Purkinje Effect at Alexandrite discussion forums | Alexandrite guide
The Purkinje Effect at Alexandrite discussion forums | Alexandrite guide
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/discussion/post/the-purkinje-effect-FRM-323-00003
203. The Weinman Mineral Gallery
The museum features four main galleries: The Weinman Mineral Gallery, The Fossil Gallery, Science in Motion and The Collins Family My Big Backyard. A 120-seat digital planetarium and an observatory with a state-of-the-art 20-inch telescope will also be lo
HTML, 63 Kb, 2009-03-30 11:53:52
/directory/museums/the-weinman-mineral-gallery-wdd-003-00039.html
204. Top Blue Green Alexandrite Oval 2.15cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 2.15cts from India (Deobhog area)
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/gemstones/natural-alexandrite-oval-2-15-faceted_xax328aa
205. Top Gem 6mm Strong Change Alexandrite 1.19cts.
Rare Alexandrite (Chrysoberyl) Round 1.19cts from India (Deobhog area)
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/gemstones/natural-alexandrite-round-1-19-faceted_YAX502aa
206. Top Gem Quality Natural Alexandrite 8.66cts.
Extremely rare Alexandrite (Chrysoberyl) Oval 8.66cts from Tanzania (Tunduru)
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207. Translucent
Gemstone transmits light but no object can be seen clearly through it such as moonstone. Translucent gemstones are not suitable for brilliant cutting but cut cabochon.
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208. Ultrasonic cleaning
A device for cleaning dirt and other foreign particles from gemstones and jewelry articles by subjecting them to ultrasonic vibrations immersed in water or other solvent. The articles must be free of stress flaws. Glass lenses and other bodies can be poli
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/chapters/glossary/ultrasonic-cleaning.html
209. Vanadium
A very hard, light-gray, ductile, malleable, metallic element of the group V of the Periodic System with the symbol V. It is one of the 8 pigment metals responsible for color in gemstones such as beryl, sapphire (natural or synthetic). Used as a component
HTML, 24 Kb, 2008-07-20 13:07:28
/chapters/glossary/vanadium.html
210. Vanadium Green Chrysoberyl Oval 2.51cts.
Hard to find Chrysoberyl (Chrysoberyl) Oval 2.51cts from Tanzania (Tunduru)
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211. Weight of gemstones and precious metals
A standard mass. The unit of weight of gemstones since 1913, is the international metric carat or decimally of them in points.
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212. What gemstones change color like alexandrite? at Alexandrite discussion forums | Alexandrite guide
What gemstones change color like alexandrite? at Alexandrite discussion forums | Alexandrite guide
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/discussion/topic/what-gemstones-change-color-like-alexandrite-FRM-282
213. What do I need to check before purchasing alexandrite gemstone?
First and foremost, we need to look at the quality and strength of the color change. A strong change where the colors are bright and attractive under any kind of light is most desirable. Many stones are either a beautiful green in daylight or a nice pinki
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/chapters/faq/what-do-i-need-to-check-before-purchasing-alexandrite-gemstone.html
214. What is the best way to clean and take care of alexandrites?
With a hardness of 8.5, Alexandrite is a tough, hard, and durable gemstone that doesn't require any special attention. Still, even the hardest gemstones can shatter with a single well-placed blow so caution is always a good idea. Washing dishes with your
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215. What is the difference between chrysoberyl and alexandrite? at Alexandrite discussion forums | Alexandrite guide
What is the difference between chrysoberyl and alexandrite? at Alexandrite discussion forums | Alexandrite guide
HTML, 25 Kb, 2009-03-19 22:15:42
/discussion/topic/what-is-the-difference-between-chrysoberyl-and-ale-FRM-302
216. What is the june gemstone? at Alexandrite discussion forums | Alexandrite guide
What is the june gemstone? at Alexandrite discussion forums | Alexandrite guide
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/discussion/topic/what-is-the-june-gemstone-FRM-337
217. What makes natural alexandrite so expensive?
Alexandrite is an expensive gemstone because it so rare and production has always been limited. For years, the only source for alexandrite was Russia. In the last 20 or 30 years several new discoveries of alexandrite have been reported but production of s
HTML, 25 Kb, 2008-07-29 08:10:06
/chapters/faq/what-makes-natural-alexandrite-so-expensive.html
218. What's the difference between a Valuation and Appraisal? at Alexandrite discussion forums | Alexandrite guide
What's the difference between a Valuation and Appraisal? at Alexandrite discussion forums | Alexandrite guide
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/discussion/post/what-s-the-difference-between-a-valuation-and-appraisal-FRM-280-00001
219. Where can I buy natural alexandrite gemstones?
Fine alexandrites or alexandrite jewelry can be purchased from jewelers specializing in colored gemstones, at trade shows, from TV sellers, at high end jewelry auctions, or online from websites specialized in alexandrite. You would be unlikely to find a h
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/chapters/faq/where-can-i-buy-natural-alexandrite-gemstones.html
220. Where can I test and appraise my alexandrite?
The most well known gemological laboratories are listed below and all of them are equipped to test alexandrite. Most gemological laboratories only identify gemstones, they do not appraise them.
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221. Where do the best alexandrite gemstones come from?
Although Russian alexandrites have the most historical value, fine stones are occasionally available from deposits in Brazil, India, Tanzania, Madagascar, and Sri Lanka. Unfortunately, there has been little production of alexandrites from any deposit in r
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/chapters/faq/where-do-the-best-alexandrite-gemstones-come-from.html
222. Why is natural alexandrite better than synthetic alexandrite?
Natural alexandrite is not better than synthetic alexandrite but natural alexandrite is very rare and uncommon in modern jewelry because it is hardly ever available and because it is too expensive for the general public to buy. Even lower quality more inc
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/chapters/faq/why-is-natural-alexandrite-better-than-synthetic-alexandrite.html
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