Cultured White Pearl Earrings With Sterling Silver Posts & ButterfliesThese cultured pearl earrings measure 8mm in diameter and have sterling silver posts and butterfly backs. The butterflies are a really nice size that reflect the high quality of these earrings. The pearls are a natural white colour which shows a slightly rosy warmth. A cultured pearl is a real pearl that has had a helping hand. Pearls grow when a grain of sand or other foreign object gets inside a mussel or oyster. Cultured pearls have a bead placed