This is the Sarah Coventry Aurora Blaze pin from the 1960s. I have included a small picture of an ad from McCall¿s October 1967 which shows actress Lesley Ann Warren wearing the set. The set is amazing Aurora Borealis stones set in silvertone metal, possible rhodium. The brooch is about 2.5 inches across and the earrings are 1 inch in diameter. It is simply gorgeous and in fantastic shape.