Sterling Silver Whitby Jet Curved Oblong Necklace. P860. This simple, contemporary necklace features a rectangular cabochon of original Whitby Jet, sourced directly from the North East Coast of Yorkshire. The gemstone is hand carved and set in solid sterling silver. Sold complete with an 18 inch sterling silver chain which fastens with a classic bolt ring style clasp.  All our Whitby Jet  jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen transform natural pieces of Whitby Jet into these stylish pieces of jewellery. You can find other matching Whitby Jet jewellery along on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging. Dimensions: 18mm x 11mm, Whitby Jet; 14mm x 7mm