Flore Silver Blue John Filigree Stud Earrings. E1782. These elegant earrings feature circular settings with the intricate filigree design on the front and cabochons of rare Blue John stone that have been sourced directly from Treak Cliff Cavern in Castleton. The stones are set within exquisite Sterling Silver, and the intricate detail of the design has been created using the latest Laser Sintering Technology allowing the beauty of the Blue John to be seen at its most striking. The earrings have been completed with a classic post and butterfly fastening. 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 online and instore. Flore Silver Blue John Filigree Stud Earrings. Dimensions 12mm.