Very dimensional and very detailed. There are multiple layers of sculpted petals encrusted with rows of dazzling clear pave set rhinestones. The pistil at the center is 3 clusters of tiny clear pave set rhinestones. it is 1 5/8" x 2 5/8". The gold vermeil is in pristine condition. It is design Patent No 122,437 issued Sept 10, 1940. It is hallmarked CoroCraft Sterling .. This brooch was inspired by a Fluco Della Cerda, Duke of Verdura, design and was photographed in the Sear's catalog for the summer of 1944.
Reference: A Tribute to America, Costume Jewelry 1935-1950 by Brunialti & Brunialti p. 71