18ct Yellow Gold Blue John Diamond Triangle Drop Earrings, E741. Part of our handmade Heritage collection, these elegant drop earrings feature stunning highly polished cabochons of the finest Blue John, sourced directly from Castleton, Derbyshire. They have a brilliant cut diamond just above the gemstone. These are completed with secure 18ct yellow gold post and butterfly fittings. 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 stunning pieces of jewellery. You can find other matching Blue John jewellery on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.