This is a lovely nouveau style boho Japanese akoya saltwater cultured pearl cluster brooch with engraved details.

The pearls are 6.25-6.50mm and are highly lustrous with exceptionally bright rosy pink overtones.

It is made of solid sterling silver and is set among detailed engraved leaves with milgrain and texturing. It is stamped "SILVER" for sterling silver. It measures 1 3/4 inches long. From Japan 1940's-1960's. 

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