9ct Yellow Gold Blue John Oblong Stud Earrings, E819. These simple and stylish earrings feature two rectangular cabochons of rare Blue John stone that have been sourced directly from Castleton, Derbyshire. The stone is placed within exquisite 9ct yellow gold settings that delicately curve around the lobe. The studs are completed by classic post and butterfly fastenings for easy wear. 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 and in stores. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.