Platinum and 18k Yellow Gold, Exceptional Antique Diamond Horseshoe Brooch. Set With 33 Old Swiss Cut and Old European Cut Diamonds Weighing 1.80ctw, Measuring and Graduating 2.1-2.8mm, I/VS2 Respectively. Total Weight is 7.98 Grams. Antique "F.W.L" Engraved on Back.