Here's a stylish Art Deco brooch. It's square - with white past stones. Inset is a black glass ring and in the center there is a faceted, open backed glass stone. It is not very big - about 1 3/10ths inch square - but is good quality and in good condition. Reference 2437 B110/10. Price £88 - further details on my web site - www.gillianhorsup.com - where you will see other items of Art Deco.