This piece is so sparkly. It is a nice pin with glass Aurora Borealis color rhinestones. I am not sure if they are crystal so I am saying glass. I am not an expert on Jewelry. I just thought this piece was lovely. It has a pin on the back so it can be worn on your blouse, dress or coat. Sorry, no maker’s mark. No missing stones or chips. It is in great condition. It is about the size of a quarter measuring 1-1/8 inch square. It is really stunning especially with a black background.
Vintage Aurora Borealis Rhinestone Pin Costume Jewelry 1960's-1970's