9ct Yellow Gold Blue John Dinky Oblong Stud Earrings, E284. These classic 9ct yellow gold earrings feature two cabochons of stunning Blue John stone that has been sourced directly from Castleton, Derbyshire. The Blue John is elegantly set within a 9ct yellow gold setting and the earrings are completed with secure 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 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. Dimensions 17mm x 5mm, Blue John; 11mm x 3mm