A stunning 15mm Blue John stone in a hallmarked solid sterling silver ring. Made in our Sheffield studio by jewellery designer Andrew Thomson. Available in most ring sizes. An engraving service is also available.
As all stones are created naturally, each one is unique and may therefore vary from the image. However we guarantee they are of the highest quality and handpicked specifically for each design.
A little bit about the stone...
Blue John (also known as Derbyshire Spar) is a semi-precious mineral, a form of fluorite with bands of a purple-blue or yellowish colour. In the UK it is found only at Blue John Cavern and Treak Cliff Cavern at Castleton in Derbyshire. During the 19th century, it was mined for its ornamental value, and mining continues on a small scale.