Silver Blue John Oval Spoon Pendant Necklace. P161. This simple and stylish necklace, part of our Heritage handmade jewellery collection boasts a striking oval shaped cabochon of Blue John stone that has been sourced directly from the Treak Cliff Cavern, Castleton, Derbyshire. The stone is placed within an exquisite sterling silver open detailed design that hangs gracefully from a delicate sterling silver chain complete with a classic bolt ring clasp for easy wear. All our Blue John jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen turn the raw Blue John stone into these stunning pieces of jewellery. You can find other matching Blue John jewellery and other Blue John necklaces on our website. Silver Blue John Oval Spoon Pendant Necklace. Sterling silver 18 inch chain.