Established in 1931, 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.
The Gemological Institute of America (GIA) is a world-renowned institution that sets the standard for gemstone identification, grading, and research. It is a leading authority on diamonds, colored gemstones, and pearls, providing education, laboratory services, and research programs. GIA’s mission is to ensure the public trust in gems and jewelry by upholding the highest ethical standards and delivering accurate, unbiased information. The institute’s contributions have had a profound impact on the gem and jewelry industry, shaping the way gemstones are evaluated and valued. GIA’s expertise and integrity make it the go-to resource for gem professionals, retailers, and consumers worldwide. As a nonprofit organization, GIA is committed to advancing the understanding of gems and promoting consumer protection through education, research, and laboratory services.