Sterling Silver Blue John Half Ridged Heart Necklace,  P2548. This feminine necklace features a stunning highly polished cabochon of fine Blue John stone that has been sourced directly from Castleton, Derbyshire. The stone has been placed within an exquisite sterling silver mount that embraces the Blue John in a ridged heart design. It sits gracefully on a 18 inch long sterling silver chain completed by a classic bolt ring clasp for easy wear. 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. We only work with the finest quality gemstones. Since all gemstones are unique and natural products, the colour and variations in the piece you receive may vary slightly from the product shown in the picture. 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.