Sterling silver whitby jet open back cushion necklace p1474 this contemporarycushion shaped pendant features a hand carved whitby jet gemstone set into a sterling silver frame the jet has been hand carved and polished to a mirror finish presented on an 18 inch sterling silver chain the necklace completes any outfit 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