9ct yellow gold whitby jet square necklace p022 a simple yet sleek design this square shaped pendant features a hand carved and highly polished whitby jet gemstone backed and set into a 9ct yellow gold frame the pendant hangs from a fixed bale on the top on an 18 inch 9ct yellow gold 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 p