This is an authentic TIFFANY Sterling Silver Black Spinel Diamond 15mm Ziegfeld Ring size 50 or 5.25. This beautiful ring is crafted a sterling silver setting with a large black spinel stone and four small round diamonds .16ctw. A perfect gift for that special someone from Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.