Sterling Silver Blue John Large Portrait Oval Bangle. B019. This simple and contemporary bangle is part of our Heritage handmade jewellery collection and boasts a stunning oval piece of Blue John stone that has been sourced directly from Castleton, Derbyshire. The stone is framed within exquisite Sterling Silver and the bangle is completed with a wide solid Sterling Silver band. 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 bangles on our website. Dimensions: Blue John stone 45x22mm. Band 15mm at widest point.