All natural diamonds above 0.21 carats each will accompany a Gemological Institute of America (GIA) certificate and either International Gemological Institute (IGI) or GIA certificate for Lab-Grown diamonds above 0.50 carats.

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.

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