Item #: 599771 This is an authentic TIFFANY Sterling Silver 18K Yellow Gold Sapphire Tourmaline Peridot Etoile Ring 56 7.5. This elegantly simple ring features a sterling silver band and 18 karat yellow gold framing bezel set sapphire, tourmaline, and peridot stones. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.