Item material: white South seashell pearls Size: 12mm Length: 32"" including the clasp Grade: AA Shell pearls are organic and made from real live oyster shell, not a simulated material, pearls in this section are 100% perfect round, have a mother of pearl beaded center, through a complex procedure, given a high gloss to look just like giant pearls with superiorluster and surface quality. The pearl are professionally double-knotted between each one for beauty and security.