METAL: 18k Gold. MEASUREMENTS: Necklace is 17" long, pendant measures 30mm x 27mm. GEMSTONES: Sapphires -Pink Gemstones, Pink Sapphires, Diamonds - approx. 1.00ctw. MARKED: Porrati, 750, Italian Mark. WEIGHT: 24.7 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.