Art glass saphiret stones which change from light blue to brown depending on the where the light strikes the stones are the focal point of this brooch and earring set. The rhinestones are light and darker topaz and light and dark blue. All pronged set. The domed brooch is 2". The matching earrings are 1" with clips. Marked Regency on the brooch. Excellent vintage condition. Shown in Carroll, Collecting Costume Jewelry 101, page 259. My earrings are a little more elaborate, and my brooch has fewer saphirets than the ones in the book. Carroll called them a hot collectible.