Lab NotesGems & Gemology, Winter 1990, Vol. 26, No. 4

Winter 1990 G&G; Lab Notes

Azurite Cubic Zirconia Simulating a Fancy Yellow Diamond Fancy Intense Yellow Diamond Treated Green Diamond Dyed Black Cultured Pearls Uncommon Cultured Pearls Unheated Ruby with a Glass Filling Synthetic Ruby with a Glass Filling Synthetic Sapphire: Flame Fusion with Needle-Like Inclusions Orange or Yellow Sapphire Imitation Turquoise To view the full section, download the PDF above.

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