Vintage Mikimoto Mid Century Cluster Akoya Saltwater Cultured Pearl Screwback Earrings- Sterling SilverThese are a stunning pair of Mikimoto Japanese akoya saltwater cultured pearl mid century cluster screwback earrings. The pearls are highly lustrous with rosy overtones and measure 5. 25 6. 50mm. They are white in color. They are set among a high polished swirl design design. They are made of solid sterling. Stamped "M" in a clamshell for Mikimoto and "SILVER" for sterling silver. Measure 5 8 inch high. From Japan 1940's 1980's. All pearls are truly