Sterling Silver Blue John Marcasite Marquise Ring, R746. An extremely elegant piece of jewellery containing a hand-carved Blue John gemstone that has been sourced directly from Castleton, Derbyshire, Castleton. This stunning British Gemstone is framed by classic intricate marcasite shoulders, and set into a solid sterling silver band. The marquise shape of this ring elongates the finger, and the marcasite stones give a beautiful eye-catching sparkle. 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 Blue John rings on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.