Research

Expanding gemmological knowledge to protect and inform.

For decades, GIA has been on the cutting edge of gemmological research, analysing data on gems and their characteristics. This effort becomes more challenging each year, as new gem sources emerge and new treatment processes and synthetic materials come onto the market.

Why GIA Research

Research not only deepens the world’s understanding of gems, but also protects those who buy or sell them. 

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Instrumentation

Researchers use powerful analytical tools to determine the distinctive characteristics of natural, synthetic and treated gem materials.

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GIA Gem Project

GIA has studied more than 400 important gemstones in the Edward J. Gubelin Collection and is committed to sharing this repository of gemmological information.  

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Research Activities

GIA pursues a wide range of scientific investigations to gather and analyde data on gemstones, identifying practical solutions to gemmological challenges and communicating their findings.  

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Career Opportunities

Our researchers hold advanced degrees in physics, geology, computer sciences, gemmology, history, and more.  Join a global team committed to advancing the science of gemmology. 

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Ongoing Research

Synthetic Ruby Overgrowth on Natural Corundum

Analysis of Synthetic Ruby Overgrowth on Corundum

June 25, 2015 - Analysis of synthetic ruby overgrowth on corundum, using analysis of inclusions, UV-Vis-NIR and EDXRF spectroscopy, and LA-ICP-MS.

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Faceted Cobalt-Diffused Spinel and Polished Plate Samples

GIA Lab Reports on a New Cobalt Diffusion Treatment of Natural Spinel

June 11, 2015 - Report on a new cobalt diffusion treatment of natural spinel, using analysis of inclusions, UV-Vis-NIR and EDXRF spectroscopy, and LA-ICP-MS.

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Heat treatment of some pink sapphires

GIA Lab Reports on Low-Temperature Heat Treatment of Mozambique Ruby

April 28, 2015 - Report on changes in Mozambique ruby following low-temperature heating, observed using inclusion analysis, FTIR spectroscopy and LA-ICP-MS.

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