Sterling Silver Blue John Framed Oblong Necklace P1160 This simple, smooth pendant features a rectangular piece of Derbyshire Blue John set in sterling silver, hand carved and polished to a mirror-like shine. It is sold complete with an 18 inch sterling silver chain. 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: 18mm x 11mm.