18ct White Gold Blue John and Diamond Necklace P2663 This stunning pendant features a round cabochon of deep Blue John which has been sourced directly from Castleton, Derbyshire.  The gemstone is neatly claw set and surrounded by a halo of 61 pave set diamonds, which also extend up the bail. The stones are set in 18ct white gold and combine to create a total diamond weight of 0.40 carats. This item is supplied complete with an 18 inch 18ct white gold chain. 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.