Blue John Oval Link Marcasite Silver Bracelet. B877. This enchanting bracelet boasts seven unmissable oval shaped pieces of Blue John stone that has been sourced directly from Treak Cliff Cavern in Castleton. The Blue John stone is set on a delicate sterling silver linked bracelet and is surrounded by mesmerising marcasite stones for a stunning finish. The bracelet is completed by a simple clip 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 in 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