9ct yellow gold whitby jet oval necklace p019 simple and flawless this yellow gold necklace features a beautiful cabochon of hand crafted and polished whitby jet the oval gemstone if framed by 9ct yellow gold contrasting with the jet black stone creating a piece of jewellery suitable for any occasion 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 the