Sterling Silver Blue John Dinky Oblong Necklace, P451. This simple and sophisticated necklace is part of our Heritage handmade jewellery collection and features a stunning cabochon oblong piece of Blue John stone that has been sourced directly from Castleton, Derbyshire. The stone is framed within an exquisite sterling silver setting. The pendant sits gracefully on a delicate 18 inch Sterling Silver chain that is 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 the natural Blue John stone into these stunning pieces of jewellery. You can find other matching Blue John jewellery on our website. Dimensions: 12mm x 3mm