Ark Angel Alchemy Natural Rainbow Moonstone 8.8ct. 18" Flower Necklace in Sterling Silver The central gemstones span 95mm with a width of 45mm at the center of the necklace. . Weighing 11 grams and 57 ct.t.w. Necklace is 18" with natural, rainbow moonstone gemstones. The teardrop moonstones measure 7mm x 5mm. The round moonstone measure 5mm in diameter.* Handmade, Polished Finish, Excellent Quality, Meticulous Detail.