18ct Yellow Gold Blue John Round Shaped Heart Clip Charm, G665. This on trend 18ct yellow gold charm features a  round shaped charm embellished with a heart shaped fine Blue John stone that has been sourced directly from the North East coast of Yorkshire.  All our Blue John jewellery is designed and crafted within our very own workshops in Derbyshire where a team of skilled craftsmen transform the natural Jet into these stunning pieces of jewellery. You can find other matching Blue John jewellery on our website and in store. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.