Sterling silver whitby jet oval necklace p091 this oval whitby jet necklace offers a simple yet elegant design the necklace features a hand polished cabochon of whitby jet framed in a sterling silver setting and hanging gracefully from a 18 inch silver chain 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 o