METAL: 18k Gold. MEASUREMENTS: Ring size - 5 1/2 (arthritis shank), top of the ring is 25mm x 22mm. GEMSTONES: Amethyst ( minor scratches on the top) diamonds approx. 1.20ctw. TESTED: 18k. WEIGHT: 13.7 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.