Sterling Silver Blue John Marcasite Ribbon Edge Necklace, P2135. This feminine necklace features a striking cabochon of rare Blue John stone, that has been directly sourced from Castleton, Derbyshire. The gemstone has been placed in the centre of an intricately crafted sterling silver setting which features exquisite twisted ribbon detailing, embellished with sparkling marcasite stones. The pendant hangs gracefully from a fluid 18 inch sterling silver chain complete with a classic bolt ring clasp for easy wear. All our Blue John jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen transform the natural Blue John stone into these stunning pieces of jewellery. You can find other matching Blue John jewellery online and in stores to complement this necklace. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.