IGI Certified Colored Gemstones

Shop our collection of IGI certified colored gemstones. IGI grades the widest variety of gemstones and jewelry in more corners of the world than any other gemological organization. As the global leader for jewelry assessment it’s experience and reach are unrivaled. Renowned for diamonds and colored gemstones, they are equally trusted with the grading of pearls, exotic carvings, fine jewelry pieces and modern synthetics and simulants.