METAL: 18K yellow gold. GEMSTONES: 22 diamonds. MEASUREMENTS: necklace is 20" long. Pendant is 29mm long (with bale) x 16mm at widest point. MARKED: 750, maker's mark,18K. WEIGHT: 9.9 grams.Gemstones have not been graded for color and clarity, and tested for clarity and color enhancement, unless stated otherwise.