This is a vintage clear rhinestone necklace. It is not marked. The necklace has prong set navette and round clear brilliant rhinestones. The necklace measures 16 inches long. The center drop measures 2 inches long. The setting appears to be rhodium. This necklace would be perfect for a wedding or prom dress. The necklace is in very good condition with no missing or darkened rhinestones. It has not been cleaned or polished. Please let me know if you have any questions. Thanks for stopping by.