Vintage Blue Enamel Japanese Saltwater Akoya Cultured Pearl Ring- Sterling Silver Sz 5 1/2

This is a unique vintage Japanese akoya saltwater cultured pearl & sterling silver ring. The pearl is 6.50mm round. It has good luster with bright rosy overtones. It is set into a braided blue enamel setting. Good condition but some slight wear/chipping to the enamel. It is in solid sterling silver but not stamped. It is a size 5 1/2 but the back is open and it is slightly adjustable. All pearls are truly vintage and have only been lightly cleaned.