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GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services. Learn about gemstones, diamonds, emeralds, peridot, citrine and more from GIA's experts and publications.
- Report Check
Report Check - Gemological Institute Of America | All About...
- Overview
Study at the Gemological Institute of America, the world’s...
- LIST YOUR STORE
Search a city or postal code to find retailers who carry...
- Birthstones
Birthstones are gemstones that represent each month of the...
- Learn How To Buy Engagement Rings
Diamond engagement ring shopping should be a joyous...
- Analysis & Grading
GIA is the world’s most trusted name in diamond grading and...
- Natural Diamonds
Diamond Grading Report. Full 4Cs assessment with a plotted...
- Gem Encyclopedia
Each Gem page features Gemological Information, a Buyer’s...
- Report Check
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 ...
Das Gemological Institute of America (GIA) wurde 1931 von Juwelier Robert M. Shipley gegründet. Es befasst sich mit der Erkundung, Forschung und Lehre von Edelsteinen und Diamanten und deren Bewertung. Die Organisation befindet sich in Carlsbad (Kalifornien)
Learn gem and jewelry skills online with the flexibility and convenience of studying on your schedule. Earn an online credential with the same curriculum as on-campus students and get hands-on experience in lab classes.
From the Hope diamond to the Spirit of the Rose, the Taylor Burton and the Lesotho Promise, we are trusted by museums and top auction houses all over the world to grade and research nature’s finest treasures.
Established in 1931, GIA is the world’s largest and most respected nonprofit institute of gemological research and learning. GIA discovers (through GIA Research), imparts (through GIA Education), and applies (through the GIA laboratory and GIA Instruments) gemological knowledge to the public.