Lab NotesGems & Gemology, Volume 47, No. 1

Spring 2011 G&G; Lab Notes

Large HPHT-Treated Cape Diamond A Very Large Colorless HPHT-Treated Diamond Thermoluminescence from Type IaB Diamonds Two Diamonds Cut to Exhibit Inclusions Halite Submitted for Identification Three Similar-Appearing Green Stones: Jadeite, Omphacite, and Hydrogrossular Beryllium- and Tungsten-Bearing Sapphires from Afghanistan Aggregate of Black Synthetic Moissanite and Crystalline Silicon Synthetic Star Spinel Imitation of Moonstone To view the full section, download the PDF above.

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Spring 2011 G&G; Lab Notes