Sterling silver blue john large owl necklace p2323 set within the eyes and belly of this quirky owl pendant are three striking and hand carved round cabochon pieces of blue john gemstone which has been sourced directly from the derbyshire blue john cavern in castletonthe sterling silver owl hangs gracefully off a delicate 18 sterling silver chain completed by a classic bolt ring clasp for easy wear all our blue john jewellery is designed and crafted within our very own workshops in ashbou