This lovely authentic brooch is from Tiffany & Co. Crafted from sterling silver with 18k yellow gold accent featurin a grooved style ribbon bow in silver and the grooved style tie in the center of the bow is in yellow gold. The pin has a safety clasp and it is hallmark: Tiffany & Co. 750 925Material: 18k yellow gold and sterling silverMeasurement: 1.23" long x 0.75" wide x 0.23" highWeight: 5.8 grams