CDTEC CERTIFIE Natural Colombian Emerald Loose Gemstone VVS ...
This video is of a CDTEC Certified 100% Genuine, 100% Natural Earth Mined Gem Quality Colombian Emerald Loose Gemstone. The Emerald weights 1.96 Carats and i This video is of a CDTEC Certified 100% Genuine, ... View Video
Sapphire - Wikipedia, The Free Encyclopedia
A rare variety of natural sapphire, This is because genuine alexandrite is a variety of chrysoberyl: not sapphire, 1984 in an article by Bill Richards, Carats and Schticks: Sapphire Marketer Upsets The Gem Industry ... Read Article
Chrysoberyl - Wikipedia, The Free Encyclopedia
Water originally present in low concentrations became more concentrated in the molten rock because it could not be incorporated into the Alexandrite 5 carats which produces gems that are fairly difficult to distinguish from natural alexandrite as they contain inclusions ... Read Article
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