Cultured pearls are real pearls. Their outer coatings are the same material as a natural pearl, and they take years to form in a mantle of a mollusc. Cultured pearls are grown under tightly controlled conditions by pearl farmers.
Farmers plant a core made up of mussel shell into an oyster or mussel; then the oyster or mussel forms a pearl around this irritant, just as they do when forming natural pearls.
Pearl farmers design cultured pearls from start to finish, ensuring they are perfectly shaped and luminous.
Once harvested, the pearls are cleaned, and some are treated and bleached before being made into jewelry.