Winter 1990 G&G Lab Notes
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
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