METAL: Platinum. GEMSTONES: Diamonds approx. 0.16ctw. Center of the ring will keep approx. 4mm x 4mm stone. MEASUREMENTS: Ring size 6 1/2, ring top is 6mm wide. MARKED: PT900, D027. WEIGHT: 6 grams. Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.