Blue john necklace marquise shape wave wood effect silver p2099rthis simple and stylish necklace boasts an unmissable cabochon tear drop shaped piece of rare blue john stone that has been sourced directly from treak cliff cavern in castleton the stone has been placed within an exquisite sterling silver setting detailed with a unique wave engraving the pendant hangs gracefully from a delicate sterling silver chain completed by a classic bolt ring clasp for easy wearrall our blue john jewelle