18ct White Gold Blue John 0.14ct Diamond Round Necklace, P3326. This elegant 18ct white gold necklace features a claw set round central stone of Blue John held within a halo of brilliant cut diamonds totalling 0.14ct. 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 necklaces on our website.  All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.