This is an authentic TIFFANY Sterling Silver 18K Yellow Gold Twist Knot Ball Ring size 50 or 5.5. This beautiful ring features a sterling silver band with two 18 karat yellow gold ball embellishments at each end. This timeless ring will bring a special style to any look, only from Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.