This is an absolutely amazing brooch in Art Deco Style by the Amsterdam Jeweler Jorge Cohen. The artist is Ilja deBruins. Christie’s auctioned several pieces of their jewelry from the collection of Elizabeth Taylor. This piece is stunning, very large at 4 inches in length and 3 3/4 inch across. Weight is appx 57 grams. Stones are likely Art Deco era glass moonstone cabochons. Workmanship is extraordinary. Maker’s mark of JdB.