9ct Yellow Gold Blue John Five Stone Oblong Bar Bracelet. B636. This elegant bracelet features five curved oblong shaped Blue John stones, that have been sourced directly from the Treak Cliff Cavern in Castleton. The individual highly polished gemstones have been framed within 9ct yellow gold mounts with alternating gold bars between each stone. The Blue John is solidly backed in 9ct gold, and the bracelet is secured by a lobster clasp fastening. 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. Your purchase will be securely dispatched with our elegant, personalised jewellery packaging.