Large Irresistible Chocolate Pearls - 10mmPrice is per 15 inch strand of these lustrous pearls. These are a beautiful quality without pits or grooves almost good enough to eat! Maximum size in the strand is 10mm. Cultured Pearls Most pearls these days are cultured. These natural freshwater pearls occur in mussels for the same reason saltwater pearls occur in oysters. Foreign material inside a mussel can't be expelled. To reduce irritation, the mollusk coats the intruder with the same