9ct yellow gold whitby jet celtic long marquise stud earrings e994 an elegant pair of earrings featuring hand carved marquise shaped whitby jet gemstones which have been sourced directly from the north east coast of yorkshire the highly polished whitby jet is framed by a unique celtic design of 9ct yellow gold with the earrings fixed with secure post and butterfly fittings for easy wear all our whitby jet jewellery is designed and crafted within our very own workshops in derbyshire where a