Stunning diamond ring made of platinum and featuring three Old European cut diamonds. The center diamond is approximately 1.20-carat, I color, VS1 clarity, the side diamonds are 0.90-carat and 0.80-carat, J color, SI1 clarity; diamond total weight 2.90 carats. Measurements: Top 15/16″ x 7/16″ (2.4 x 1.1 cm). Ring size 5.5; re-sizable. Weight: 13.3 grams. It is stamped with French platinum hallmark and maker’s workshop mark with SB in it. All diamond weights and measurements are approximate and were calculated by the formulas. All diamond grading is done under GIA standards as the mounting permits.