Tiffany & Co. 18k Yellow Gold Medium Size T Cuff Bangle Bracelet. The authentic bangle is from Tiffany & Co. where graphic angles and clean lines blend to create this gorgeous T collection collection. It is crafted from 18k yellow gold with a high polished finish featuring a double T at the front of the band with a small opening and the back of the band has a hinged mechanism which allows easy access round the hand. It is signed by the designer with the metal content. Material: 18k yellow gold Hallmark: Tiffany & Co. Au750 Measurements: 7" with opening x 0.19" wide x 0.19" high Front of band: 0.62" across x 0.58" wide Weight: 28.7 grams Stock# 57366