Sterling Silver Blue John Marcasite Oval Triangle Ring, R748 This stylish ring features an oval shaped Blue John gemstone in the centre that has been directly sourced from Castleton, Derbyshire. The stone is placed within an exquisite sterling silver setting that showcases triangle detailing embellished by dazzling marcasite stones, bringing a sophisticated sparkle to the piece. The ring is completed by a classic sterling silver band. 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 and other Blue John rings on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.