9ct Yellow Gold Blue John Swirl Heart Necklace, P2483. This elegant pendant features a perfectly carved piece of Blue John stone, that has been sourced directly from Castleton, Derbyshire. Showcasing the range of colours in Blue John, the gemstone is neatly partnered by 9ct yellow gold in a half and half swirl heart. All our Blue John jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen transform natural pieces of Blue John into these stylish pieces of jewellery. You can find other matching Blue John jewellery along with matching Blue John necklaces on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging. Dimensions; 25 mm x 18mm