Tiffany & Co. Vintage 18k Yellow Gold 15mm Wide Open Cuff Band Bracelet. This vintage authentic cuff bracelet is from Tiffany & Co. it is crafted from 18k yellow gold with a high polished finish, it features wide front open design with curved round ends, the top has a long zig zag design and it has full designer signature with the metal content. Material: 18k yellow gold Hallmark: Tiffany & Co. 750 Italy Measurement: 6.5" with opening x 0.58" wide x 0.12" high Weight: 39.4 grams Stock# 55104