This is an authentic Mikimoto Japanese saltwater akoya cultured pearl circle leaf brooch.

The pearls are 4.75-5.50mm round. They have great luster with bright rosy pink overtones. Nice quality.

It is made of solid sterling silver and is stamped "M" in a clamshell for Mikimoto and "S" in a square for sterling silver. It measures 1 3/8 inches long. From Japan 1940's-1980's.

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