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Research & News
Lab Notes
Large Pinkish Orange CVD Synthetic Diamond
A combination of size, color, and clarity made this the most remarkable CVD synthetic diamond GIA has tested so far.
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Event
2018 GIA Symposium
Scientists and business leaders will gather at a summit of the gem and jewelry industry.
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Seminar
Advanced Synthetic Diamond Seminar in Hong Kong, June 19
Learn the latest techniques to identify synthetic diamonds from GIA researchers. Seating is Limited.
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Lab Notes
Five CVD Synthetic Diamonds Greater Than Three Carats
The GIA lab examines five gem-quality CVD-grown diamonds in sizes that reflect the improving technology of the synthetic gemstone industry.
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Micro-World
Pink Tourmaline in Spodumene
A large, rare inclusion is found in a spodumene host.
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Gem News International
Very Small Akoya Cultured Pearls
A selection of very small akoya cultured specimens demonstrates the challenges gemologists face when determining pearl origin.
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