9ct Yellow Gold Blue John Three Stone Stud Earrings. E803. These beautiful earrings have been created using a brilliant combination of solid 9ct yellow gold and the highest quality hand carved rare Blue John stone. The Blue John has been sourced directly from Castleton, Derbyshire.  They are secured with post and butterfly fastenings.  All our Blue John jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen transform the natural Blue John stone into these stunning pieces of jewellery. You can find other matching Blue John jewellery and other Blue John earrings on our website and in store. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging. Dimensions: 12mm x 7mm.