Sterling Silver Whitby Jet 4mm Bead Chain Link Necklace, N952_16. This Whitby Jet and sterling silver necklace features 4mm sized Whitby Jet gemstones, hand woven onto sterling silver chain.  A perfect gift for someone special. Length: 16 inches. All our Whitby Jet jewellery is designed and crafted within our very own workshop, where a team of skilled craftsmen transform natural pieces of Whitby Jet into these stunning pieces of jewellery. You can find other matching Whitby Jet jewellery on our website. All articles are lovingly and securely dispatched with our elegant jewellery packaging.