Research & News
The GIA Diamond Origin Report: Traceability Based on Science
Consumers now, more than ever, have a heightened awareness of sustainably and ethically sourced products. The GIA Diamond Origin Report uses scientific evaluation to provide confirmation of a diamond’s geographic origin.
What Country Do My Diamonds and Other Gemstones Come From?
Dr. James Shigley shares how GIA determines colored stone origin and the mysteries of diamonds origin.
Top 10 Digital Reads from the GIA Library
Explore GIA’s collection of free, rare digital books and manuscripts that document the history of gems and jewelry.
ABCs of Pearls Reveal Fascinating Aspects
"The A-Z of Pearls,” with at least one pearl-related subject for each letter of the alphabet, was presented in Thailand recently.
A look ahead to the future of geographic origin determination.
GIA Knowledge Sessions
Engage in webinars on the most diverse and pressing issues in gemology today, including gemstone origin, laboratory-grown stones and new discoveries in field gemology.