9ct Yellow Gold Blue John Inlay Ring, R003. This classic Blue John and 9ct yellow gold band ring, is hand cut and crafted within our workshops. The simple band ring features a rectangular shaped Blue John gemstone that has been sourced directly from Castleton, Derbyshire which is set into a the smooth 9ct yellow gold band. The ring is perfect for every day wear and suitable for both Ladies and Gents.  All our Blue John jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen transform natural pieces of Blue John into these stunning pieces of jewellery. You can find other matching Blue John jewellery on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging. Dimensions: Blue John; 11mm x 4mm, width of band; front; 6mm, back of band; 3.5mm.