Blue john 3 stone torque silver necklace n404rmake a statement with this exquisite necklace that boasts three piece of organic shaped cabochon blue john stone that has been sourced directly from treak cliff cavern in castleton the stones have been set between delicate sterling silver dividers on a silver chain that is fastened by a classic lobster clasp for easy wearrall our blue john jewellery is designed and crafted within our very own workshops in ashbourne derbyshire where a team of ski