Sterling Silver Blue John Round Framed Necklace, P1148. This classic necklace is part of our Heritage handmade jewellery collection and features a stunning round cabochon of fine Blue John stone which has been sourced directly from Castleton, Derbyshire. The gemstone is simply and exquisitely set within a sterling silver frame and completed with an 18 inch sterling silver chain which fastens securely with a bolt ring style clasp. 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. Dimensions: 15mm x 15mm