Item #: 315147 This is an authentic TIFFANY Sterling Silver Black Onyx Bead Toggle Necklace. This stunning necklace is crafted of round black onyx beads with a toggle clasp in sterling silver. This is a marvelous necklace with the classic style only from Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.