Sterling Silver Blue John Rope Edge Oval Brooch, M181. This stunning sterling silver brooch features an oval shaped cabochon Blue John stone that has been sourced directly from Castleton, Derbyshire. The stone has been set within a sterling silver base with an exquisite twisted detailing around the edge. 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 pieces of 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 33m, Blue John; 20mm x 26mm