Women's prayer beads, freshwater pearl rice beads, crystal finish, ash cherry tasselClean pearl beads Pearls that grow in freshwater shells, such as oysters, are called freshwater pearls. Freshwater pearls do not grow into perfect circles because no nuclei are inserted during cultivation, and each one grows into a different shape, such as a rice shape. In addition, there are a wide variety of colors, so there are no two identical beads. Freshwater pearls do not have nuclei and are made entirely of nacre, so one of their