This is one of my very favorite brooches! I love the subtle Guilloche design under the enamel, and the lovely copper color of the rhinestone spangles! This is by Danecraft, a famouch jewelry maker for many decades!

METAL: Goldplated metal
GEM: crystal, enamel, 
SIZE: 2 3/4 inch long
MAKER/HALLMARKS: "Danecraft"