This is an authentic DAVID YURMAN 18K Yellow Gold Diamond 6.5mm Lexington Chain Toggle Necklace. The necklace is crafted of 18 karat yellow gold and features elongated and cable links, clasping links enabling the removing or adding to pendant, and diamond accents weighing approximately .43 total carat weight. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.