Polished stone necklace by Miriam Haskell measures 24 inches long. It features a slide clasp which was patented in 1969, helping to date this lovely piece to that general time frame. The use of semi-precious polished stones in jewelry was also popular in the early 1970's. The patent number can be seen on the clasp. The necklace is also identified with a hang tag signed MIRIAM HASKELL. A close-up reveals jade green and clear glass beads, as well as gold caps. Condition is fine with no issues. Beautiful!