This is an authentic TIFFANY & CO 18K White Gold Diamond Bow Ring in size 5.5. This stylish 18K white gold ring is a lovely delicate piece with a cross over bow and center row of diamonds for a one of a kind look only from Tiffany & Co! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.