Blue john curve 3 stone 9ct yellow gold stud earrings e803rthese stunning earrings boast three unmissable geometric shaped pieces of cabochon blue john stone that have been set in 9ct yellow gold to create this elegant curve design the blue john stone has been sourced directly from treak cliff cavern in castleton before being polished to perfection and set into these mesmerising earrings the pieces are completed by classic butterfly fastenings for easy wearrall our blue john jewellery is de