Sterling Silver Blue John Marcasite Flower Ring, R815 This feminine floral sterling silver, Blue John and marcasite ring features a circular central piece of Blue John that has been sourced directly from Castleton, Derbyshire. The striking stone is surrounded by intricate petals with tiny pieces of Marcasite at their hearts.  All our Blue John jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen transform natural Blue John into these stunning pieces of jewellery. You can find other matching Blue John jewellery on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging. Dimensions 26mm x 19mm, Blue John; 15mm x 10mm