A G Color Inc., established in 1998, serves wholesale and retail clients worldwide, specializing in premium Tanzanite, Rubellite, Tsavorite and Emeralds. As 12 time AGTA Spectrum award winners, we offer calibrated singles, pairs, suites, and rare stones from 3ct to 200ct. With the launch of A G Diajewels, we expanded into fine jewelry—creating exquisite, custom-designed pieces that showcase the brilliance of our gemstones.