Sterling silver blue john large portrait oval bangle b019 this simple and contemporary bangleis part of our heritage handmade jewellery collection and boasts astunning oval piece of blue johnstone that hasbeen sourced directly from the treak cliff cavern in castletonthe stone is framed within exquisite sterling silver and the bangle is completed with a wide solidsterling silver band all our blue john jewellery is designed and crafted within our very own workshops in ashbourne derbyshi