Sterling silver blue john small owl necklace set within the belly of this cute and quirky owl pendant is a stunning round cabochon of rare blue john stone that has been sourced directly from treak cliff cavern in castleton the sterling silver owl design is further embellished by glistening marcasites set in the eyes of the bird giving the piece a touch of sparkle the pendant hangs gracefully from an 18 inchsterling silver chain complete with a classic bolt ring clasp all our blue john jewel