Freshwater Pearls Jewelry Set

- The Necklace Comes with Magnetic Gold Filled Clasp . earings is with sterling silver. Pearl: there are many types of pearls, including pearls, ( made with no human interference), cultured Pearls, pearls made by inserting a small piece of foreign tissue living oyster or Mollusk. Baroque pearls the , irregularly-shaped pearls, freshwater pearls, seed pearls and Biwa pearls are pearls that are formed in the freshwater mussel. the Mohs hardness rating for pearls is 3.