Lab Notes Gems & Gemology, Volume 48, No. 4

Winter 2012 G&G Lab Notes

Artificially Irradiated Brown Diamond
Diamond with Diopside-Pyrope Contact Inclusion Pair
Treated Yellow Diamond with Unusual Spectroscopic Features
Unusual Omphacite and Pyrope-Almandine Garnet Inclusion in Diamond
Polymer-Beryl Assemblage
Bicolored Spinel
Silicon-Vacancy Defect in HPHT-Grown Type IIb Synthetic Diamond
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