Since 1861, Gump's has been a destination for jewelry that is distinctive, extraordinary and timeless. Once considered more precious than gold, jade has been more highly prized in Asia than any other gemstone. Treasured for thousands of years, it represents harmony, balance and protection, and is thought to bring good luck to the wearer. Green nephrite jade, 10mm. Diamonds. 18-karat yellow gold clasp. 17"L.