Offered is a midcentury blue rhinestone necklace by CORO. The silvertone metal necklace features a pretty round drop of blue rhinestones. The piece is is marked, CORO Des Pat. Pend., a wonderful example of high quality costume jewelry created by a well known manufacturer. The necklace is adjustable from 13 1/2" to approximately 16". In very good vintage condition, still sparkly after all these years, a beauty.