Sterling Silver Whitby Jet Heritage Ribbed Oval Necklace. P322. This classic necklace features a stunning oval shaped cabochon of the finest Whitby Jet stone, sourced directly from the north east coast of Yorkshire. The beautiful sterling silver ridged pendant hangs gracefully from a fluid 18 inch long silver chain complete with a classic bolt ring clasp for easy wear. 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 on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging. Dimensions: 24x10mm, Whitby Jet: 13x7mm.