Blue john open flower silver drop earrings e1617rthese simple and stylish drop earrings boast two oval shaped pieces of rare blue john stone that has been directly sourced from treak cliff cavern in castleton the stone has been set within the centre of an intricately crafted sterling silver flower design the earrings gracefully hang from the lobe by the classic hook fasteningsrall our blue john jewellery is designed and crafted within our very own workshops in ashbourne derbyshire where a