These coral beads are about 200 years old from Morocco, incorporated with Chinese turquoise, Ethiopian silver and oxidized sterling silver chain at back. A sterling S-Hook clasp for easy closure. 18 1/2 inches long, can be adjusted to shorter length. Coral ranges in color from soft orange branch to deep red-orange coral beads. Center coral bead measures 12mm diameter x 7mm tall. Larger turquoise ovals measure 19mm x 15mm across x 11mm thick. A classic!