Winter 2011
Lab Notes
DIAMOND
A Rare Fancy Vivid Purple Diamond
A Strongly Purple-Colored Black Diamond
HPHT-Treated, with the Fluorescence Pattern of an HPHT-Grown Synthetic
Type IIb with Long Phosphorescence
OPAL
Clarity-Enhanced, with Artificial Matrix
Ethiopian Black Opal
Coated Bead-Cultured Freshwater PEARLS
Tenebrescent ZIRCON
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