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GIA is a nonprofit organization that provides research, education and laboratory services for gem and jewelry professionals and enthusiasts. Learn about gemology, diamonds, emeralds, peridot, citrine and more from GIA's experts and publications.
- My GIA
You can manage your team members and provide access to My...
- Report Check
Report Check - Gemological Institute Of America | All About...
- Submit a Gem
The GIA Memo Creator makes it easier than ever to submit...
- LIST YOUR STORE
Search a city or postal code to find retailers who carry...
- Birthstones
Birthstones are a fun, popular and colorful introduction to...
- GIA Facetware
GIA Facetware® is a free online service that allows you to...
- Programs & Courses
One of the most sought-after gemology credentials, the GIA...
- Diamond Essentials
This course covers how to describe diamond jewelry...
- Graduate Gemologist
The GIA Graduate Gemologist diploma program delivers a...
- My GIA
GIA reports represent the highest standard of reliability, consistency and integrity. And now, GIA Report Check is available for all GIA reports, providing you with an additional level of assurance.
5 days ago · GIA is the world’s foremost authority on diamonds, colored stones, and pearls. Learn about its history, education, research, and standards in gems and jewelry.
Learn about diamond, the hardest and most valuable gemstone, from GIA, the world's foremost authority on gems. Explore diamond history, lore, 4Cs, treatments, synthetics, imitations, and more.
GIA is the world's foremost authority in gemology, offering unbiased and accurate assessment of diamonds, colored stones, pearls and unknown materials. Learn how to submit your gemstone, view reports, find a jeweler and more.
Learn about the different types of GIA reports for loose, natural diamonds, including the new Diamond Origin Report and the Diamond Dossier. Find out how to read a GIA report and what a laser inscription is.
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