This is an authentic DAVID YURMAN 18K Yellow Gold Sapphire North Star Birthstone Charm Pendant Necklace. This stunning necklace is crafted of 18 karat yellow gold and features a blue sapphire stone in the center of an eight-pointed star motif attached to a cable accented enhancer bail. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.