This is a lovely mid-century ribbon brooch composed of Japanese saltwater akoya cultured pearls and unique sterling silver textured accents.

The pearls measure 5.50-6.75mm round. They have great luster with rosy pink overtones. 

It is made of solid sterling silver. It is stamped "S" which is an older mark for sterling silver. It measures 1 1/2 inches long. From Japan 1950's-1980's. 

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