9ct Yellow Gold Blue John Celtic Triangle Stud Earrings, E1846. An elegant pair of earrings featuring hand carved triangle shaped Blue John gemstones, which have been sourced directly from Castleton, Derbyshire. The highly polished Blue John is framed by a unique Celtic design of 9ct yellow gold with the earrings being fixed with secure post and butterfly fittings for easy wear. All our Blue John jewellery is designed and crafted within our very own workshops in Derbyshire where a team of skilled craftsmen transform the natural Blue John into these unique pieces of jewellery. You can find other matching Blue John jewellery on our website and in store. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.