Tiffany & Co. 15.28 carat Emerald-cut diamond ring in platinum. Center of the ring is set with 15.28 carat emerald cut diamond, color D, clarity VS1, GIA Type IIA, .Accented with a diamond set halo and shank. There is total of 186 round brilliant cut diamonds set on the mounting, with total weight of approximately 1.30ct, color D-F, clarity VS. Signed: Tiffany & Co. Numbered. Marked: ©, Pt950, D 15.28 carats