alexandrites

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61. Old Russian Alexandrite Ring at Alexandrite discussion forums | Alexandrite guide: Old Russian Alexandrite Ring at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2011-08-26 12:37:00; /discussion/post/-old-russian-alexandrite-ring-FRM-368-00001
62. Are there any ways to improve alexandrite colors by any special treatment like heating?: Alexandrite cannot be improved by any kind of thermal treatment. Although some have tried, heat treatment does not seem to affect alexandrite at all. Some lower quality cracked alexandrites are oiled to hide the cracks but beyond that, alexandrite is not; HTML, 24 Kb, 2008-07-29 08:11:21; /chapters/faq/are-there-any-ways-to-improve-alexandrite-colors-by-any-special-treatment-like-heating.html
63. 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; HTML, 65 Kb, 2009-03-15 03:14:21; /directory/laboratories/american-gemological-laboratories-wdd-003-00020.html
64. Alexandrite buyer's guide. Chapter 9, Alexandrite gemstone buyer and collectors guide. at Alexandrite discussion forums | Alexandrite guide: Alexandrite buyer's guide. Chapter 9, Alexandrite gemstone buyer and collectors guide. at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2007-02-18 16:04:57; /discussion/topic/alexandrite-buyer-s-guide-chapter-9-alexandrite-ge-FRM-162
65. 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; HTML, 25 Kb, 2008-07-20 13:02:54; /chapters/glossary/alexandrite.html
66. price discussion at Alexandrite discussion forums | Alexandrite guide: price discussion at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2006-09-23 16:32:56; /discussion/post/-price-discussion-FRM-165-00003
67. Very modern, sleek Alexandrite ring at Alexandrite discussion forums | Alexandrite guide: Very modern, sleek Alexandrite ring at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2009-03-19 22:47:00; /discussion/post/very-modern-sleek-alexandrite-ring-FRM-287-00002
68. Book review: Russian Alexandrites at Alexandrite discussion forums | Alexandrite guide: Book review: Russian Alexandrites at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2010-11-27 21:21:00; /discussion/post/book-review-russian-alexandrites-FRM-362-00003
69. Book review: Russian Alexandrites at Alexandrite discussion forums | Alexandrite guide: Book review: Russian Alexandrites at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2010-11-27 21:21:00; /discussion/post/book-review-russian-alexandrites-FRM-362-00001
70. AGTA Gemological Testing Center: The AGTA Gemological Testing Center is the natural coloured gemstone industry’s premier independent laboratory providing the industry and the public with a complete range of services, including gemstone identification, origin determination and pearl ide; HTML, 65 Kb, 2009-03-15 03:11:40; /directory/laboratories/agta-gemological-testing-center-wdd-003-00019.html

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