METAL: 18k Gold / Platinum. MEASUREMENTS: 6, ring is 16mm wide. GEMSTONES : Yellow gemstone (Ri tested 1.74), diamonds - approx. 0.12ctw. MARKED: 18k, 10% irid. plat, Boris Lebeau. WEIGHT: 17.6 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.