This is a lovely vintage Japanese akoya saltwater cultured pearl cluster ring.

The pearls are a white color and measure 4.50-6.75mm. Fantastic luster with rosy pink overtones.

It is set in solid sterling silver with hand engraved and milgrain details. Mid-century style. It is not stamped for metal purity, but tested. US size 7. 

All pearls are truly vintage and have only been lightly cleaned. It has an old sizing mark on the shank.