Silver Blue John Unique Cuff Bangle. B794. This statement bangle boasts a softly curved large triangular shaped piece of Blue John stone that has been sourced directly from Treak Cliff Cavern in Castleton. The stone has been set within a sterling silver bangle which sits neatly on your wrist. 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 bangles on our website. Dimensions: Blue John stone 38x34mm.