This is a vintage pair retro fan style Japanese akoya saltwater cultured pearl screwback earrings.

The pearls measure 7.00mm. They have fantastic luster with rosy pink overtones and white color. 

They are stamped "950 SILVER" for slightly more pure than sterling silver. The earrings measure 5/8 inch long. From Japan 1940's-1960's.

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