Research Collaborations & Support to Academia

Since GIA’s founding in 1931, our mission has been to protect the public trust in gems and jewelry. Part of fulfilling this mission means conducting extensive research on gems through acquiring gem samples and conducting thorough scientific investigation on these samples through cutting-edge instruments. Our goal is to share our findings widely, including with the jewelry trade, scientific and academic communities and the general public.

The following list showcases recent articles authored or coauthored by GIA scientists that have appeared in professional publications. Coauthored articles were written in collaboration with researchers at universities or other institutions. These diverse articles represent pressing topics that our scientists are currently investigating, including knowledge that addresses current gemological challenges.

All Gems & Gemology articles are available for download on the GIA website. Articles from other journals are often available in university libraries or from the journal publishers. At GIA, we are privileged to have access to a large range and quantity of gems often unavailable to other scientists. We are thrilled to be able to share the insight obtained from these gems with fellow scientists and the public at large.

Sixth Annual Gianmaria Buccellati Foundation Award Winner

A graduate of GIA’s Jewelry Design program in London is the recipient of the 2022 Gianmaria Buccellati Foundation Award.

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Sweet Home Mine Rhodochrosite from 1888

A rhodochrosite on display at AGTA dates back more than a century to Colorado’s Alma Mining District.

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Zeki Karaca Jewelry: Luxury Pens

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Enormous South Sea Cultured Pearl Filled with Cultured Pearls

An unusually large cultured pearl was filled with multiple cultured pearls, perhaps after the emergence of an original single-bead nucleus.

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Sapphires from Thammannawa, Kataragama Area, Sri Lanka

The February 2012 discovery of high-quality blue sapphires at Thammannawa near Kataragama in southeastern Sri Lanka has intensified gem mining and exploration in the surrounding area and all over the country.

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The Seven Types of Yellow Sapphire and Their Stability to Light

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Unusual Dumbbell-Like Inclusion in Diamond

Examination of a 0.40 ct near-colorless round brilliant diamond with a large inclusion resembling a dumbbell

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34th International Gemmological Conference

A report from the 34th IGC, held in Vilnius, Lithuania in August 2015.

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History of the Chivor Emerald Mine, Part I (1880–1925): From Rediscovery to Early Production

Chronicles developments at the Chivor emerald mine in Colombia between 1880 and 1925, based on archival records.

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History of Emerald Mining in the Habachtal Deposit of Austria, Part II

The finale of a two-part series on the mining history of Austrian emerald deposits in the Habachtal region.

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Fluorescence Produced by Optical Defects in Diamond

How variations in UV lamp output can affect observed fluorescence color and intensity.

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Plastic Deformation: How and Why Are Most Diamonds Slightly Distorted?

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