This is a lovely vintage wreath brooch featuring green nephrite jade leaves and Japanese saltwater akoya cultured pearls.

The pearls measure 5.50mm and are lustrous. They have light rosy pink overtones and are a white color. They are accented with oval dark green nephrite jade leaves that measure 12x9mm. 

It is gold filled and is stamped "1/20 12 K GF". It is not solid gold or precious metal. From the 1950's-1980's. Measures 1 1/4 inch across. 

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