9ct Yellow Gold Blue John Medium Oval Ring. R012. This stunning statement ring is part of our Heritage handmade jewellery collection and features a beautiful hand carved Blue John cabochon which has been sourced directly from Castleton, Derbyshire. The gemstone is set in a statement 9ct yellow gold band with a perfect, highly polished finish. 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 stylish 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: 21mm x 11mm, width of band at back 6mm.