9ct White Gold Blue John Wave Ring. R876. This stunning ring is part of our Heritage handmade jewellery collection and boasts a piece of the finest Blue John which has been sourced directly from Castleton, Derbyshire. The stone is highly polished and placed within an exquisite 9ct White Gold wave designed setting and is completed with a classic 9ct White Gold band. 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 are lovingly and securely dispatched with our elegant jewellery packaging.