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GIA is a nonprofit organization that provides gemological research, education and laboratory services. Learn about gemstones, diamond origin, field gemology, and more from GIA's experts and resources.
- 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
Featured Program Jewelry Design & Technology. Computer-aided...
- GIA Locations
GIA Ramat Gan is open with limited capacity . We are...
- Diamond Essentials
This course covers how to describe diamond jewelry...
- Graduate Gemologist
Graduate Gemologist ® Program. The GIA Graduate Gemologist...
- Learn What Diamond Color Is and What it Means | GIA 4Cs of Diamond Quality
- 4Cs of Diamond Quality by GIA | Learn about Diamond Buying | What are the Diamond 4Cs
- Learn How to Buy a Diamond with the GIA Diamond Buying Guide | 4Cs of Diamond Quality by GIA
- Laboratory-Grown Diamonds (Diamonds Grown in a Lab) | GIA
- Learn What Diamond Cut Actually Means and All About Diamond Cut Grades| 4Cs of Diamond Quality
- GIA Diamond Grading Reports | 4Cs of Diamond Quality by GIA
- About GIA Diamond Grading | 4Cs of Diamond Quality by GIA
- How to Get a GIA Diamond Grading Report | GIA Diamond Grading & Reports | 4Cs of Diamond Quality by GIA
- My GIA
GIA is the world’s foremost authority on diamonds, colored stones, and pearls. Learn about its history, research, education, and quality standards in gems and jewelry.
The Gemological Institute of America (GIA) is a nonprofit institute based in Carlsbad, California. It is dedicated to research and education in the field of gemology and the jewelry arts. Founded in 1931, GIA's mission is to protect buyers and sellers of gemstones by setting and maintaining the standards used to evaluate gemstone quality.
Citrine is the transparent, pale yellow to brownish orange variety of quartz. View the Gem Encyclopedia. Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.
GIA Diamond Origin is a program that matches polished diamonds to their rough of known origin using scientific and gemological expertise. Learn how diamonds support communities, environment and economy in different countries and how to buy diamonds with GIA Diamond Origin Reports.
Explore the gemological treasures of the U.S.A. with GIA, the world's leading authority on gems and jewelry. Learn about gemstones, mines and museums in this interactive guide.
