Blue john necklace 3 stone curved barrel silver p866 this simple and sophisticated necklace is part of our heritage handmade jewellery collection andboasts threestunning cabochon pieces of rare blue john stone that havebeen sourced directly from treak cliff cavern in castleton the stones areframed within an exquisite sterling silver setting the pendant sits gracefully on a delicatesterling silver chain that is completed by a classic bolt ring clasp for easy wear all our blue john jewel