Sterling Silver Blue John Small Owl Necklace. P2321. This charming owl pendant features a cabochon of the finest Blue John stone which has been sourced directly from Castleton, Derbyshire. The sterling silver owl design is further embellished by sparkling marcasite details. Sold complete with an 18 inch sterling silver chain which fastens with a classic 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. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging. Dimensions: 27mm x 12mm including bail.