METAL: 18k Gold. MEASUREMENTS: Ring size - 6, top is 14mm in diameter, center will fit approx. 9mm stone, one of the prongs is bent. GEMSTONES: Diamonds approx. 0.55ctw. TESTED: 18k. WEIGHT: 4.7 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.