Absolutely stunning, unique, substantial brooch, signed NM CHINA. I cannot decipher this makers mark! difficult to locate this item anywhere online. If you know anything, let me know! this one is fancy, solid quality, I assure you! It has a fascinating array of sizes and colors of rhinestone but also gorgeous inlaid smooth colored glass. About 2 1/2 inches across. Unusual estate item, statement piece. likely vintage based on the other item in the estate. fantastic condition.