Silver Blue John Marcasite Leaf Pendant Necklace. P2120. This Blue John and Sterling Silver pendant features a hand carved teardrop shaped Blue John gemstone, which has been sourced directly from the Treak Cliff Cavern, Castleton in Derbyshire, set within a detailed beaded sterling silver frame in a feminine leaf design and accented with sparkling Marcasite gemstones. It is supplied complete with an 18" sterling silver chain. 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 necklaces online and instore. Silver Blue John Marcasite Leaf Pendant Necklace