This is an authentic TIFFANY 18K Yellow Gold Diamond Door Knocker Ring 50 5.25. This stylish ring is crafted of 18 karat yellow gold and features a central door knocker motif that is accented with diamonds approximately weighing 0.12 carats. Enjoy this lovely ring for a distinctive look only from Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.