Blue john necklace marquise shape beaded edge silver p2088rthis enchanting necklace boasts an unmissable tear drop shaped piece of rare blue john stone that has been sourced directly from treak cliff cavern in castleton the stone is placed within an exquisite sterling silver setting and surrounded by tiny beaded detailing giving a sophisticated sparkle to the piece the pendant hangs gracefully from a delicate sterling silver chain complete with a classic bolt ring clasprall our blue john j