METAL: 18K gold, sterling silver. MEASUREMENTS: necklace is 18" long x 5mm wide. Ayu Dot Collection pendant is 59mm long x 33mm at widest point. MARKED: JH 925 18K. WEIGHT: 51.1 grams. Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise. Watches are guaranteed to be in running order, if described as such, at the time of listing only. Watches have not been tested for features functionality, unless otherwise stated in description.