Platinum & Diamond Ring Circa. 1980 Italy Platinum with square shaped shank. Comfortable to wear. Full-cut white flawless diamond of .15 carat. Diamond tested with a diamond tester. 22K gold triangular setting for the diamond. Gold tested with 22K acid. Platinum tested with platinum acid. Hand-made. The ring measures 3/16 inch in width. Size 7 1/2 12.1 gr. 7.8 dwt. Marked "Pt 950"