This is a stunning classic Japanese akoya saltwater cultured pearl mid-century modern necklace. 

If features a single, highly lustrous, pearl measuring 7.25mm. It is fantastic quality  and has bright rosy pink overtones. 

It is in solid sterling silver and is stamped "SILVER" on the chain. Total drop is 1 1/8 inch. Chain is 16.50 inches. 

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