gemstones

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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); HTML, 15 Kb, -0001-11-30 00:00:00; /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); HTML, 15 Kb, -0001-11-30 00:00:00; /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); HTML, 15 Kb, -0001-11-30 00:00:00; /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); HTML, 14 Kb, -0001-11-30 00:00:00; /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); HTML, 15 Kb, -0001-11-30 00:00:00; /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); HTML, 15 Kb, -0001-11-30 00:00:00; /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); HTML, 15 Kb, -0001-11-30 00:00:00; /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); HTML, 15 Kb, -0001-11-30 00:00:00; /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); HTML, 15 Kb, -0001-11-30 00:00:00; /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); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-cushion-21-41-faceted_ax6302aa
183. Strong Color Change Alexandrite Oval: Rare Alexandrite (Chrysoberyl) Oval 1.05cts from India (Deobhog area); HTML, 15 Kb, -0001-11-30 00:00:00; /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); HTML, 15 Kb, -0001-11-30 00:00:00; /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); HTML, 15 Kb, -0001-11-30 00:00:00; /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); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-oval-1-19-faceted_yax501ab
187. Strong Color Change Alexandrite Oval 3.06cts: Extremely rare Alexandrite (Chrysoberyl) Oval 3.06cts from India (Deobhog area); HTML, 15 Kb, -0001-11-30 00:00:00; /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); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-trillion-1-95-faceted_yax453aa
189. Strong Color Change Alexandrite Trillion: Rare Alexandrite (Chrysoberyl) Trillion 1.21cts from India (Deobhog area); HTML, 15 Kb, -0001-11-30 00:00:00; /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); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-oval-1-47-faceted_xax320cc
191. Stunning 10mm Chrysoberyl Cushion 5.67cts: Rare Chrysoberyl (Chrysoberyl) Cushion 5.67cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-chrysoberyl-cushion-5-67-faceted_ycb146nt
192. Stunning Chrysoberyl Cat's Eye Round 6.10cts: Rare Cymophane (Chrysoberyl) Round 6.1cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /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); HTML, 15 Kb, -0001-11-30 00:00:00; /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); HTML, 15 Kb, -0001-11-30 00:00:00; /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; HTML, 25 Kb, 2008-07-20 13:06:58; /chapters/glossary/synthetic.html
196. Synthetic alexandrite identification at Alexandrite discussion forums | Alexandrite guide: Synthetic alexandrite identification at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2009-03-28 06:53:00; /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; HTML, 38 Kb, 2008-07-20 13:01:50; /chapters/chapter7/synthetic-gemstone-growth-techniques.html
198. Tanzanian alexandrite, Tunduru: Information about Tanzanian alexandrite findings and mining in Tunduru, Tanzania.; HTML, 29 Kb, 2008-07-31 07:35:25; /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; HTML, 42 Kb, 2008-07-20 13:01:34; /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.; HTML, 65 Kb, 2009-03-15 02:46:44; /directory/laboratories/the-gem-and-jewelry-institute-of-thailand-wdd-003-00015.html

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