METAL: 10k and 14k Gold. MEASUREMENTS: Ring size - 10 1/2, ring top is 17mm at widest point. GEMSTONES: old mine cut diamond - approx. 0.40ct. Some minor damage on enamel. MARKED: 10-14k. WEIGHT: 14.5 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.