Most freshwater pearls are nucleated by tissue, but Edison cultured pearls are nucleated with beads, exactly as saltwater pearls This necklace contains 38 Edison Pearls which were chosen for their bright luster that can be compared with that of high-end saltwater pearls, and for their unique vivid multi colours. The pearls measure 11x12mm in diameter. Knotted between each pearl for safety, the necklace is completed with an elegant and practical magnetic ball clasp in solid silver. At the length of 47cm , the necklace sits nicely under the collarbone. Packaging: Necklace Jewellery box and an Authenticity Certificate to guarantee the source and quality of the pearls. Insured track and trace delivery.