From the history of the Chivor emerald mine to the ancient craft of jade carving to insights into the causes of corundum colour, these articles combine science with art and history to provide a window into the fascinating and complex world of gemstones. Offering up the best and most current research by GIA lab scientists, all were published in GIA’s peer-reviewed academic journal, Gems & Gemology, or other professional journals.
Read about the some of the world’s most valued gems and the identification of unusual gem treatments and rare gem materials.Read More
GIA field gemmologists are globetrotters, travelling to all corners of the world to study new gem sources, such as Nasarawa aquamarine or Mozambican ruby. In the past decade, they’ve been on 95 expeditions to 21 countries, collecting more than 1 million carats of samples.
Curious about artisanal mining, the conditions of gem formation or how gemmologists determine gemstone country of origin?Read More
Scientific Equipment & Techniques
As new gems and gem localities are discovered and gem origin services become increasingly in demand — and as laboratory-grown stones and treated stones grow in popularity — gemmologists rely more and more on advanced instruments to identify and evaluate stones. From loupes and microscopes to laser ablation inductively coupled plasma mass spectrometry, each instrument provides a piece of the puzzle on gemstone type, potential treatments and origin.
GIA researchers, developers and innovators work each day to discover solutions for identifying complex gem materials and treatments.Read More
Richard T. Liddicoat Postdoctoral Research Fellows
Diamond chemistry and physics
Geology and geochemistry
Diamond geology and chemistry
Plasma-assisted CVD of diamondRead More
Classical mineralogistRead More
Trace element chemistry
Karen SmitRead More
Why GIA Research
Research not only deepens the world’s understanding of gems, but also protects those who buy or sell them.
Researchers use powerful analytical tools to determine the distinctive characteristics of natural, synthetic and treated gem materials.Learn More
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 gemmological information.Go to Index
Where Do Blue Diamonds Come From?