A versatile piece appropriate for day or evening wear, this striking necklace is composed of glossy black onyx beads handstrung with red silk, and finished with a brushed sterling silver clasp. Since 1861, Gump's has been a destination for jewelry that is distinctive, extraordinary and timeless. Our signature collection is made in-house — we develop the design, carefully select each gemstone and oversee the production from start to finish. Onyx, 16mm. Sterling Silver. 18"L.