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  1. 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.

  2. Hace 6 días · Established in 1931, the Gemological Institute of America (GIA) is the world’s foremost authority on diamonds, colored stones, and pearls. A public benefit, nonprofit institute, GIA is the leading source of knowledge, standards, and education in gems and jewelry.

  3. 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.

  4. Graduate Gemologist. Program. The GIA Graduate Gemologist diploma program delivers a comprehensive gemology education on diamonds and colored stones. Using the latest gemological equipment, you will work with real diamonds and gemstones under the trained eyes of GIA instructors.

  5. 1,039,445 views 2 years ago. At GIA, we're trusted to grade the most incredible diamonds in the world. Including yours. Visit to learn more. Read more. 4Cs Diamond...

  6. El Instituto Gemológico de América ( Gemological Institute of America, o GIA) es una institución sin ánimo de lucro dedicada a la investigación y formación en el campo de la gemología y joyería. 1 Fundada en 1931, la misión del GIA es proteger a los vendedores y compradores de gemas, estableciendo y manteniendo los ...

  7. Discover Brilliance. We Grade the World’s. Most Precious Diamonds, Including Yours. Feel confident you're choosing the best. with a diamond graded by the experts at GIA. Learn More. Graded by GIA. A Brilliant Legacy.