Gemological Institute Of America


GIA (Gemological Institute of America) is a public benefit, nonprofit organization that conducts research and offers education and laboratory services to help protect the public by providing unbiased information about gems and jewelry.

Established in 1931, GIA is the world’s foremost authority on diamonds, colored stones, and pearls. GIA is the leading source of knowledge, standards, and education in gems and jewelry.



Armada Drive,5345
92008 Carlsbad, California, USA

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