Lab Notes Gems & Gemology, Summer 2002, Volume 38, No. 2

Summer 2002 G&G Lab Notes

Another Commercial U.S. Facility Offers HPHT Annealing for Diamonds
Challenges in Recognizing a Color Attribute’s Effect on Color Grading Fancy Colors
Diamond “Pearl” Necklace
Internal Laser Drilling Update
Unusual “Pink” Diamond
High-Quality Synthetic Jadeite from General Electric
Cobalt-“Diffused” Sapphire
Yellow-Green Schlossmacherite Beads
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