Delightful stud earrings featuring natural Blue John set in hallmarked 925 sterling silver. Made in our Sheffield studio by jewellery designer and silversmith Andrew Thomson. Available in two stone sizes.
Now a little bit about the stones…
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.