This is a rare domed blue moonstone cabochon set in a classic prong setting. I believe this is from 1950s. The rhinestones are sett in what looks like two ruffles. One set is bluish and the other pinkish. It measures 2 1/4 round. Whether pinned to a lapel, scarf, or hat, this original piece promises to add a touch of sophistication and retro flair to any outfit. Feel confident when purchasing from me -- I. Consistently deliver outstanding customer service.