A nicely made Art Deco platinum and diamond bow brooch dating to about 1920. The pin is highly detailed with pierced platinum and set with old cut diamonds. The pin is articulated to show the dimension of the bow and the pierced work brings out the texture of what would be ribbon. There are 60 diamonds weighing about 1.80 cts. Bow and feminine such motifs were popular at the end of the Edwardian to Art Deco periods. This bow measures 2.15 inches long.