METAL: 18k Rose Gold. MEASUREMENTS: Ring size - 6, ring top is 21mm wide. GEMSTONES: Rubies, Pink sapphires, Black and white diamonds - approx. 3.00ctw. MARKED: 750, LTJ. WEIGHT: 21.7 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.