Silver blue john marcasite long oval pyramid bead edge necklace p2116 this stunning pendant features an ovalshaped hand carved blue john gemstone set at the heart of a sterling silver and pyramid beaded marcasite frame a very eye catching pendant with a vintage feel this piece uses only the finest blue john stone which has been sourced directly from the treak cliff cavern in castleton derbyshire the pendant hangs beautifully from a fluid18 silver chain all our blue john jewellery is d