The Rectangle Ring sets white diamonds into a rectangular face on a solid gold band, on approx. 1.93 g of solid 18K gold (750 hallmark), in yellow, rose or white gold, with a certificate of authenticity. One of a pair with the Oval Ring, which carries 0.17 ct on 1.80 g — identical construction, and the shape of the face is the only difference. Straight edges make the rectangle read as more architectural than the oval. Light enough at 1.93 g to stack. Product Details 18K Gold WeightApprox. 1.93 g Diamond WeightApprox. 0.16 ct FormRectangular face on a solid band