METAL: Platinum top/ 14k gold shank. MEASUREMENTS: Ring size 4 1/2 (arthritis shank), ring top - 17mm x 17mm. GEMSTONES: Center Old Euro cut diamonds - approx. 1.40ct, surrounded with diamonds and sapphires. TESTED: plat. top and 14k gold shank. WEIGHT: 7.1 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.