Silver blue john long marquise pendant necklace p388 this classicnecklace is part of our heritage handmade jewellery collection andboasts a strikingblue john stonethat hasbeen sourced directly from treak cliff cavern in castletonthe stone is framed within a highly polished sterling silver setting the pendant sits gracefully on a fluid 18 inch long sterling silver chain that is completed by a classic bolt ring clasp for easy wear all our blue john jewellery is designed and crafted with