Lovely Kramer aurora borealis circle pin. This brooch features 2 rings of graduated aurora borealis crystals that are prong set into a gold tone setting. It measures 1.75 inches in diameter. There are a few stones with extremely tiny nicks to the edges of the tables of the stones, and I only mention them for full disclosure, because they are otherwise not noticeable. The overall condition of the brooch is excellent. It dates to around the 1950's.