Blue john earrings round drop 9ct yellow gold e054rthese exquisite drop earrings boast two cabochon round pieces of blue john stone that has been sourced directly from treak cliff cavern in castleton the stones are placed within mesmerising 9ct yellow gold settings that hang delicately from the lobes the earrings are completed by classic post and butterfly fastenings for easy wearrall our blue john jewellery is designed and crafted within our very own workshops in ashbourne derbyshire wher