Lady's 18K White Gold Gregg Ruth Round Diamond Earstuds. Contains: Two Natural Round Brilliant Cut Diamonds -- GIA Certified. Weight Approx: 1.47cttw, Color: F, Clarity: SI1. Forty-Eight Natural Round Brilliant Cut Diamonds> Weight Approx: .36cttw, Color: Near Colorless. From the atelier of Gregg Ruth, one of the stellar jewelry designers in America, whose studio is in New York, comes this stunning pair of pave accented diamond earstuds. These earrings contain over 1.80 carats of diamonds.