Silver Blue John White Mother of Pearl Split Heart Ring. R651. This simple and sophisticated ring is part of our Heritage handmade jewellery collection and boasts stunning Blue John stone that have been sourced directly from Treak Cliff Cavern in Castleton and white Mother of Pearl. The stones are framed within an exquisite split heart Sterling Silver setting and completed with a classic Sterling Silver band. All our Blue John and Mother of Pearl jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen turn the raw stones into these stunning pieces of jewellery. You can find other matching Blue John and white Mother of Pearl jewellery and other Blue John and white Mother of Pearl rings on our website. Silver Blue John White Mother of Pearl Split Heart Ring, dimensions 16 x 17mm heart.