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GIA is an independent nonprofit that provides research, education and laboratory services for gem and jewelry professionals and enthusiasts. Learn about gemology, gem identification, diamond origin, colored stones, and more from GIA's experts and publications.
- 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...
- Learn How To Buy Engagement Rings
GIA’s Retailer Lookup can help locate a jeweler in your area...
- Gem Encyclopedia
GIA’s Guide to Gemstones: Gem Encyclopedia GIA’s Gem...
- Citrine
Citrine is rare in nature. In the days before modern...
- Birthstones
Birthstones are a fun, popular and colorful introduction to...
- Emerald
Gem experts differ on the degree of green that makes one...
- Report Check
Há 1 dia · 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.
GIA’s New York campus is a state-of-the-art facility in the International Gem Tower – right in the heart of the famed Diamond District. The campus is feet away from thousands of businesses devoted to jewelry.
5 de abr. de 2024 · GIA’s groundbreaking research and unbiased grading and analysis set the global standards that protect the gem-buying public. With campuses, research centers, and laboratory facilities around the world, GIA is the world’s foremost authority in gemology.
10 de ago. de 2020 · Learn about GIA's diverse course offerings in gemology, jewelry design and technology, and pearls. Choose from online, on-campus, or hybrid programs and certificates at various locations worldwide.
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. The institute does so through research, gem identification, diamond grading services, and a variety of educational programs.
GIA’s Guide to Gemstones: Gem Encyclopedia. GIA’s Gem Encyclopedia is a virtual journey through the science and lore of gemstones from across the globe. Each precious stone page features additional detailed gemological information, a buyer’s guide, photos, videos & research. Filter By Country. View Gems as.