The listing, Two butterfly pins -- one blue, one purple has ended.
Purple butterfly is a Coldwater Creek piece. It's about 1.75 inches at the widest part and is made from enameled metal. There's also some blue and some brown. The metal is silver toned, but you don't really see the color of the metal; you can wear this with other gold or silver jewelry. (I don't know what the metal is; there's a stamp that I can't magnify enough to read.)