This is a stunning vintage Japanese saltwater cultured pearl ring by Fuji Pearl. They were a high quality designer that went out of business around the mid-century. 

The pearls are good quality and measures about 6.50mm. They have good luster and rosy pink overtones. They are surrounded by fine hand engraving and milgrain edging.

It is set in solid sterling silver. It is stamped "SILVER" which is an older mark for sterling and "FP" for Fuji Pearl. US size 6. 

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