18ct White Gold 0.17ct Diamond Blue John Round Stud Earrings E1998 These elegant stud earrings boast two stunning round pieces of rare Blue John stone that has been directly sourced from Treak Cliff Cavern in Castleton. The stone is placed within an exquisite 18ct white gold setting and surrounded by dazzling 0.17 carat brilliant cut diamonds, creating a breathtaking sparkle. All our Blue John jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen turn the raw Blue John stone into these stunning pieces of jewellery. You can find other matching Blue John jewellery and other Blue John earrings on our website. 18ct White Gold Blue John Round 0.17 Carat Diamond Stud Earrings