Learn about certificates

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.A GIA Diamond is a diamond certified by the Gemological Institute of America, the World’s foremost authority in independent third-party diamond certification. GIA diamonds are examined by a minimum of four highly trained diamond graders and gemologists. At each step of a diamond’s evaluation, a more senior staff member independently grades the stone.

IGI was the first global institute to receive ISO 17025 certification for natural and laboratory grown diamonds. With 50 years of expertise, the 17025 certification is considered the most important standard for calibration and testing laboratories around the world.