This is a retro mid-century modern Japanese akoya saltwater cultured pearl tie bar.
The pearl is 7.50mm round. It has fantastic luster with extremely bright rosy overtones.
It is made of solid sterling. Stamped “SILVER” and older Japanese mark for sterling. Measures 1 1/4 inch across. Very modern style.
All pearls are truly vintage and have only been lightly cleaned. Has some scratching on the back.