Sterling Silver Blue John Large Oval Necklace. P079. Part of our handmade Heritage jewellery collection, this classic necklace features a beautiful Blue John gemstone, sourced directly from Castleton, Derbyshire. The cabochon is hand carved and polished to perfection and set in solid sterling silver. Sold complete with an 18 inch sterling silver chain which fastens with a classic bolt ring style clasp. 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 stylish 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: 35mm x 18mm including bail.