Rhinestone Mirror Back Vintage Brooch

Blue teardrop shaped rhinestones, smaller green rhinestones, and a large lucite cabochon in pale green surrounded and embellished with filigreed gold tone metal make this an attractive and unusual example of the popular 1960's period. Overall dimension is 5cms x 5.5cms. There is a mirror back which shows a little wear. Overall condition is very good. There is a firm roll over safety clasp to the back. Nice quality, although unsigned so unknown which of the American costume jewellery manufacturers of the time produced it.