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Photo: Courtesy: Omi Privé
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Research & News
Gem News International
Nephrite Bracelet with Filled Cavity
A jade bracelet contains unusual fillers, used to create a smooth surface.
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Lab Notes
Cat’s-Eye Rock Consisting of Jadeite and Amphibole
Raman spectroscopy reveals that a green bead, showing chatoyancy on one side, comprises jadeite and amphibole.
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Lab Notes
Large Faceted Afghanite
A report on the largest facet-grade afghanite seen in the GIA gem identification department.
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Alumni Spotlight
Jeweler’s Goal: Unite Gem, Jewelry Industry in Mexico
Alumni chapter leader wants to help develop Mexico’s third-most populous city into a thriving jewelry design and manufacturing hub.
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Micro-World
Devitrified Glass Imitation of Demantoid
A yellowish green specimen with horsetail-like inclusions is found to be glass rather than demantoid garnet.
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Lab Notes
15 Carat HPHT Synthetic Diamond
A synthetic diamond seen in the Carlsbad lab is the largest faceted lab-grown diamond examined by GIA.
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