Sterling Silver Blue John Classic Rectangle Necklace. P083. This classic, flat, smooth pendant features a rectangular piece of rare Blue John gemstone framed in sterling silver, hand carved and polished to a mirror-like shine. It is sold complete with an 18" sterling silver chain. All our Blue John jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen transform natural pieces of Blue John into these stylish pieces of jewellery. You can find other matching Blue John jewellery along with matching Blue John pendants on our website. All articles purchased from CW Sellors are lovingly and securely dispatched with our elegant jewellery packaging. Matching items are available within this collection. Dimensions: 22x11mm, Blue John; 13x9mm