Vintage Joan Rivers Pink Enamel Plique a Jour Butterfly Swarovski Rainbow Rhinestone Brooch. Absolutely gorgeous Pink, Orange, Green, and Purple enameled Plique a Jour Style Limited Edition Butterfly Brooch. The rhinestones are Swarovski and are very beautiful. In very good vintage condition may show minor signs of wear due to normal use and age. Measures approximately 2 inches. Shipped with USPS First Class Mail.