The U Arch Of Round Diamonds Sparkles On Each Side To Complete The Look Of This Gorgeous Vintage Cushion Cut Engagement Ring. This Gorgeous Cushion Ring Is Available In Platinum, 14k And 18k Gold. Our unique and elegant diamond engagement rings are handcrafted to order and beyond conflict free diamonds and jewelry. Available in 14k, 18k white and yellow gold, Platinum and various sizes. Give your partner the gift of commitment through a diamond ring that represents your crystal clear endearment.