For decades, GIA has been on the cutting edge of gemological research, analyzing 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.
GIA Gem Project
Dr. Edward J. Gubelin Gem Collection
GIA has studied more than 400 important gemstones in the Edward J. Gubelin Collection and is committed to sharing this repository of gemological information.
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Large, Rare Diamonds a Window into Earth’s Mantle
Breakthrough research led by GIA Postdoctoral Research Fellow Evan Smith examines exceptional diamonds.
Research Fellowship
Postdoctoral Research Fellowship Program
Pursue full-time academic research in mineralogy, geology, physics, materials science and other fields related to gemology.
Read MoreWhy GIA Research
Research not only deepens the world’s understanding of gems, but also protects those who buy or sell them.
Instrumentation
Scientific Instruments Help Researchers Tell Gem Stories
Researchers use powerful analytical tools to determine the distinctive characteristics of natural, synthetic and treated gem materials.
Learn MoreResearch Activities
GIA pursues a wide range of scientific investigations to gather and analyze data on gemstones, identifying practical solutions to gemological challenges and communicating their findings.
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John Latendresse is known as the father of American cultured pearls. He was also a great natural pearl collector and left his family a remarkable natural pearl collection. The Latendresse family is well recognized in the American pearl industry and has long supported GIA pearl research. Come with us to revisit this family and their pearl collection.
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Analysis of a diamond graded Fancy blue revealed a CVD synthetic overgrowth on natural diamond.
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Results from GIA’s recent testing of a 5.19 ct CVD synthetic diamond, the largest it has examined to date.
Read MoreRichard T. Liddicoat Postdoctoral Research Fellows
Large, Rare Diamonds Reveal the Inner Workings of Earth’s Mantle
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Diamond Growth from C–H–N–O Recycled Fluids in the Lithosphere: Evidence from CH4 Micro-inclusions and δ13C–δ15N–N Content in Marange Mixed-habit Diamonds
Read ArticleAn In-Depth Gemological Study of Blue Sapphires from Pailin, Cambodia
Read ArticleA Study of Rubies from Cambodia and Thailand
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Pinctada maculata (Pipi) Bead-Cultured Blister Pearls Attached to Their Shells
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A Study of Sapphire from Chanthaburi, Thailand and its Gemological Characteristics
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