Five Row Strand Genuine White Cultured Freshwater Pearl Choker Necklace 925S Silver Clasp 16in Gorgeous And Elegant Five Strand AA Quality Cultured Freshwater Pearl Woven Choker Necklace Layers of growing grain are visible on the surface Brand New Without tags Genuine White Cultured Freshwater Pearl Pearl Shape: Near-Round Pearl Size: 3-5 mm Length: 16 inches Clasp Material: 925 Sterling Silver Tarnish Resistant Will come in box Pearls are the only gems that are produced by an animal. Cultivators mimic the way natural, uncultured pearls are created by implanting a beadlike nucleus from a mollusk shell into an oyster, and the animal responds to the irritant by coating it with a pearlescent nacre of calcium carbonate, layer by layer, multiple times per day. In this article the sizes and shapes of freshwater cultured pearls are approximate, therefore no claims are accepted for this reason. To preserve this jewel, it is recommended not to expose it to direct contact with creams and perfumes.