Blue John Bracelet 12 Stone Curved Triangle Silver. B244. This simple and sophisticated bracelet is part of our Heritage handmade jewellery collection and boasts twelve stunning curved triangle shaped pieces of Blue John stone that have been sourced directly from Treak Cliff Cavern in Castleton. The stones are framed within exquisite Sterling Silver settings and linked together to allow the bracelet to hang gracefully from the wrist. The bracelet is fastened using a classic lobster 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 turn the raw Blue John stone into these stunning pieces of jewellery. You can find other matching Blue John jewellery and other Blue John bracelets on our website. Blue John and Sterling Silver bracelet, dimensions 9mm stones.