Tiffany & Co. Sterling Silver 18k Yellow Gold Hook & Eye Bangle Bracelet. This is a authentic bangle by Tiffany & Co. from the Hook & Eye collection. It is crafted from solid sterling silver with 18k yellow gold accent featuring a 4mm wide grooved band with the loop and hook at the front, the hook ends with a yellow gold knob and the loop eye has a small yellow gold band. It is fully signed by the designer with the metal content. Material: sterling silver & 18k yellow gold Hallmark: Tiffany & Co. 925 750 Measurements: Band: 4mm wide front: 33mm across x 12.5mm wide x 12mm high Weight: 10.7 grams Stock#: 50109