Silver blue johnnarrow oval stone bangle b018 this simple and sophisticated bangleis part of our heritage handmade jewellery collection and boasts astunning ovalpiece of blue john also known as derbyshire spa sourced directly from the treak cliff cavern in castletonthe highly polishedstone is framed within exquisite sterling silver and the bangle is completed with a solidsterling silver bandthe two combined help to create one of the most elegant silver bangles available all our b