Sterling Silver Whitby Jet Wavy Marquise Drop Necklace. P2173. This exquisite necklace features a stunning marquise shaped cabochon of the finest Whitby Jet stone, sourced directly from the north east coast of Yorkshire. The feminine sterling silver curve pendant hangs gracefully from a fluid 18 inch long silver chain complete with a classic bolt ring clasp for easy wear. All our Whitby Jet jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen transform natural pieces of Whitby Jet into these stylish pieces of jewellery. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.  Dimensions: 44mm x 11mm, Whitby Jet: 24mm x 9mm.