Sterling Silver Blue John Foxtail Cushion Necklace, N963. This elegant necklace is part of our Foxtail range and features three cushion shaped pieces of rare Blue John stone that has been sourced directly from Castleton, Derbyshire. The stones are set on a sterling silver foxtail chain and is completed with a classic lobster fastening.  All our Blue John jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen transform natural pieces of Blue John into these stunning pieces of jewellery. You can find other matching Blue John jewellery on our website and in stores. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.