This is a lovely mid-century Japanese akoya saltwater cultured pearl tie bar.

The pearl is 6mm round. It has great luster with rosy pink overtones. 

The setting is made of solid rose gold. Stamped "K10" and "UHS" for an unknown designer. Lovely rosy color to the metal. Total length is 1 5/8 inches. Has an attached safety chain.

All pearls are truly vintage and have only been lightly cleaned.