METAL: 18k gold. MEASUREMENTS: Necklace is 15 1/2" Long. Clasp Is 56mm X 23mm. GEMSTONES: diamonds approx. 6.70ctw, pearls - 2.5mm To 3mm In Diameter. MARKED: 750. WEIGHT: 89.4 grams. Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.