Blue John Split Heart Link Silver Bracelet. B360. This exquisite bracelet boasts twelve unmissable tear drop shaped cabochon Blue John stones that have been directly sourced from Treak Cliff Cavern in Castleton. Each stone has been paired to create six elegant hearts that are dotted across the sterling silver chain. The piece is completed by 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. Sterling Silver and Blue John.