Item #: 769868 This is an authentic DAVID YURMAN Sterling Silver Black Onyx Infinity Necklace. This stunning necklace is crafted of a 2.5mm sterling silver box chain that holds has various shaped black onyx stones and cable style infinity knots. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.