Sterling Silver Blue John Marcasite Oval Flower Ring, R822 This floral ring contains an oval Blue John gemstone framed by petal-shaped beads of marcasite. The shank on the ring is thin and delicate, as are the silver claws which hold the Blue John in place. The Blue John is sourced directly from Castleton, Derbyshire. 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. Dimensions 12mm x 10mm, Blue John; 7mm x 5mm