This is a lovely strand of vintage Japanese saltwater akoya cultured pearls and white gold.

The pearls measure 5.00-5.50mm with good luster and rosy overtones. 

The clasp is solid 14K white gold and is a filigree style with a single 3.50mm pearl in the center. It is stamped "14K". Total length is 23.25 inch. From mid-century. 

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