Sterling Silver Blue John Marcasite Double Spiral Round Necklace, P2117 This stunning sterling silver pendant is hand made by highly skilled craftsmen within our workshops.The Blue John has been directly sourced from Castleton, Derbyshire.  It\'s beautifully made that features two silver swirls that are accented with sparkling marcasite gemstones, making the piece particularly glamorous. This item is supplied complete with an 18 inch silver 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.