This is an authentic DAVID YURMAN 18K Yellow Gold Diamond Malachite Oval Signature Ring 54 7. This ring is crafted of 18 karat yellow gold and features a cable style band with a malachite center stone framed by a halo of diamonds, approximately .57 total carat weight. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.