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61. Stunning Chrysoberyl Trillion 13.75cts.: Extremely rare Chrysoberyl (Chrysoberyl) Trillion 13.75cts from Sri Lanka (Horana); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-chrysoberyl-trillion-13-75-faceted_VCB207aa
62. Stunning Color and Cut 11.7x10.8mm Chrysoberyl: Rare Chrysoberyl (Chrysoberyl) Oval 6.13cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-chrysoberyl-oval-6-13-faceted_ycb146dp
63. The Alexandrite Laser: Synthetic alexandrite predominantly used as a laser and was initially developed for military and government applications; HTML, 41 Kb, 2008-07-20 13:01:54; /chapters/chapter7/the-alexandrite-laser.html
64. 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.; HTML, 65 Kb, 2009-03-15 02:46:44; /directory/laboratories/the-gem-and-jewelry-institute-of-thailand-wdd-003-00015.html
65. The Gem Guide: Gemworld International, Inc. is primarily engaged in publishing for the jewelry industry. Their premier publication, The GemGuide, made its debut in 1982. The GemGuide Appraisal Software, which utilizes The GemGuide pricing, has been continually improved; HTML, 63 Kb, 2009-03-30 11:33:14; /directory/publications/the-gem-guide-wdd-003-00037.html
66. The International Colored Gemstone Association: The International Colored Gemstone Association, headquartered in New York City and operating additional "GemBureaus" in Idar-Oberstein and Dubai, is the nonprofit trade association that represents the international colored gemstone industry, an extremely; HTML, 63 Kb, 2009-03-30 11:24:43; /directory/organizations/the-international-colored-gemstone-association-wdd-003-00036.html
67. The National Association of Jewelry Appraisers: The National Association of Jewelry Appraisers is the only appraisal association in the United States that devotes itself solely to the appraisal of gems, jewelry, silver flatware and hollowware.; HTML, 64 Kb, 2009-03-15 03:30:29; /directory/appraisals/the-national-association-of-jewelry-appraisers-wdd-003-00024.html
68. The Russian MSU Gemological Center: Found at 1995, MSU Gemological Center is a part of MSU Department of Geology and co-founders of the Russian Gemological Society (2000), the Union of Modern and Antique Jewelry Appraisers, and member of the Russian Diamond Chamber.; HTML, 65 Kb, 2009-03-15 02:33:25; /directory/laboratories/the-russian-msu-gemological-center-wdd-003-00013.html
69. 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; HTML, 24 Kb, 2008-07-20 13:07:17; /chapters/glossary/ultrasonic-cleaning.html
70. Vanadium Green Chrysoberyl Oval 2.51cts.: Hard to find Chrysoberyl (Chrysoberyl) Oval 2.51cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-chrysoberyl-oval-2-51-faceted_CB4249aa
71. 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; HTML, 26 Kb, 2008-07-29 08:12:28; /chapters/faq/what-do-i-need-to-check-before-purchasing-alexandrite-gemstone.html
72. 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; HTML, 25 Kb, 2008-07-29 08:11:53; /chapters/faq/what-is-the-best-way-to-clean-and-take-care-of-alexandrites.html
73. 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
74. 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; HTML, 25 Kb, 2008-07-29 08:12:01; /chapters/faq/where-can-i-buy-natural-alexandrite-gemstones.html
75. 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.; HTML, 28 Kb, 2008-07-29 08:12:19; /chapters/faq/where-can-i-test-and-appraise-my-alexandrite.html
76. 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; HTML, 26 Kb, 2008-07-29 08:11:15; /chapters/faq/why-is-natural-alexandrite-better-than-synthetic-alexandrite.html
77. Zandrite at Alexandrite discussion forums | Alexandrite guide: Zandrite at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2009-03-28 06:22:00; /discussion/post/zandrite-FRM-324-00001

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