This is an authentic TIFFANY 18K Yellow Gold Amethyst 7mm Paloma Picasso Sugar Stacks Ring 52 6. The ring is crafted of 18 karat yellow gold and features a polished amethyst cabochon atop a narrow band. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.