The Sephora Ring sets diamonds along a twisted gold band, on approx. 3.75 g of solid 18K gold (750 hallmark), in yellow, rose or white gold, with a certificate of authenticity. At 0.09 ct on 3.75 g of gold the twist carries the piece and the diamonds mark it — the twist is what gives a plain band its movement of light, in the same way as the Fred and Valentine wedding bands. The Sephora Hoop Earrings are offered in three diameters. Product Details 18K Gold WeightApprox. 3.75 g Diamond WeightApprox. 0.09 ct