METAL: 18K gold. GEMSTONES: pearls, black stones, orange stones. MEASUREMENTS: shortest necklace is 21" long x 6.6mm at widest point , second necklace is 31 1/4" long x 7mm at widest point. Third necklace is 38.5" long x 7mm at widest point, the longest necklace is 70.5" long x 7mm at widest point. MARKED: 750. WEIGHT: 153.8 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.