This is an authentic DAVID YURMAN 18K Yellow Gold Blue Topaz 7mm Infinity Pendant Necklace. This necklace is crafted of 18 karat yellow gold and features a 14mm blue topaz stone in the center of an infinity motif pendant. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.