9ct Yellow Gold Blue John Toscana Marquise Twist Ring. R512. Part of our handmade Toscana collection, this contemporary ring features a striking marquise shaped cabochon of highly polished Blue John stone presented on a 9ct yellow gold band with twisted shoulder detailing. A statement dress ring which adds colour and elegance to any collection. 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: 20mm x 7mm.