Tiffany & Co. patented the Lucida diamond cut, a mixed-cut style with intense depth. The Lucida diamond ring is reminiscent of the ‘90s, when the ring was first introduced. Retails for 6000 USD. In excellent condition and recently polished. Ring size is 5.75. Comes with Box;Valuation Report;Tiffany Diamond Certificate; Comes with the original box and papers. (Out of stock) Lucida Diamond Engagement Ring in Platinum E VS2 0.52 CTW