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.
Go to IndexFeatured Article
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.
Learn More
A look at the mining and distinguishing characteristics of this naturally vibrant blue sapphire.
Read More
Presents a visual guide to the growth processes and major gemological spectroscopic features of synthetic diamonds.
Read More
Summarizes data collected on more than 15,000 natural blue/gray/violet diamonds examined by GIA during the last decade and examines the mechanisms that produce this color range.
Read MoreRichard T. Liddicoat Postdoctoral Research Fellows
Where Do Blue Diamonds Come From?
Large, Rare Diamonds Reveal the Inner Workings of Earth’s Mantle
Read Article
Characterization of Blue Sapphires from the Mogok Stone Tract, Mandalay Region, Burma (Myanmar)
Read ArticleDNA Techniques Applied to the Identification of Pinctada Fucata Pearls from Uwajima, Ehime Prefecture, Japan Supplementary Data
Read ArticleUpdate on "Low-Temperature" Heat Treatment of Mozambican Ruby: A Focus on Inclusions and FTIR Spectroscopy
Read ArticleNon-Bead-Cultured Pearls from Pinctada margaritifera
Read Article
Change Language:
