TIFFANY & CO. DIAMOND PLATINUM ENGAGEMENT RING; Tiffany & Co. diamond certificate #25583655 / K03120270 describes RBC diamond, 1.27 cts., color E, clarity VVS2, excellent precision of cut, excellent polish, very good symmetry in six prongs on platinum hoop. Crown inscribed "T & Co. K03120270". Retail replacement certificate ($28,400), diamond certificate, original box and packer. Size 3 1/2. 3.3 dwt.