This is a blue rhinestone brooch that can also be worn as a pendant. The brooch and necklace are not marked. The necklace has a piece that can be opened and attached to the brooch so that it can be a pendant. The brooch has prong set rhinestones. It measures 1 inch in diameter. The necklace measures 16 inches long. The necklace and brooch are in very good condition. They have not been cleaned or polished. Please let me know if you have any questions. Thanks for stopping by.