METAL: 18k Gold. MEASUREMENTS: Ring size - 4 3/4, ring top is 14mm in diameter. Center will fit approx. 8.5mm stone. GEMSTONES: 26 side diamonds . MARKED: 14-2, 2010, ESI2, 0.78, 18k 750. WEIGHT: 7.3 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.