Sterling Silver Blue John Small Oval Signet Ring, R188. This elegant ring features a stunning oval cabochon of hand carved Blue John which has been sourced directly from Castleton, Derbyshire. The gemstone is set within an exquisite sterling silver base and completed with a statement 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 stylish pieces of jewellery. You can find other matching Blue John jewellery and other Blue John rings on our website and in-store. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.