18ct Yellow Gold Blue John Open Marquise Drop Earrings, E2437 These contemporary earrings feature a central hand carved marquise shaped Blue John gemstones, sourced directly from Castleton in Derbyshire, highly polished and set in 18ct Yellow Gold. Open work detail at the side of the Blue John is a lovely enhancement to the earrings. Secured with a post and butterfly back fastening.  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 Blue John into these stylish pieces of jewellery. You can find other matching Blue John jewellery on our website and in our stores. This item will arrive lovingly and securely dispatched in our elegant jewellery packaging. Dimensions 32mm x 10mm, Blue John; 17mm x 6mm