Tiffany & Co. 14k Gold Signet Ring Consign Now DeptJewelrySizeSize 2.5 in. Tiffany & Co. 14k Gold Signet Ring, marked Tiffany & Co. 14k “C.P.W.” 12-16-88″; 8.83g, 3.75dwt Size 2.5 in. Provenance: The Estate of Carole P. Webster, Nantucket Island, Massachusetts Please note that this auction has ended. Click here for an overview of this auction.