9ct yellow gold whitby jet 021 carat diamond cushion ringr594 this gorgeous ringshowcases a stunning hand carved square whitby jet gemstone which has been sources directly from the north east coast of yorkshire and isencased in an 9ct yellow gold settingthat is pave set with 021 carats of sparkling white diamonds all our whitby jet jewellery is designed and crafted within our very own workshops in derbyshire where a team of skilled craftsmen turn the raw jet into these stunning pieces