Item #: 1895953 This is an authentic TIFFANY 18K White Gold Iolite Metro Ring size 48 or 4.5. The ring is crafted of 18 karat white gold and features a narrow band consisting of a thin row of iolite. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.