These highest quality Blue John stud earrings are handmade in our Sheffield workshop and set in 9ct Gold. The intensely deep coloured 9mm round stones have been specially selected for this design.
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.