Sterling Silver Whitby Jet Off Set Necklace. P2165. Marquise shaped piece of Whitby Jet which has been off set and mounted into the sterling silver setting to create this unique design which is presented on an 18inch sterling silver chain. 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. You can find other matching Whitby Jet jewellery on our website. Dimensions: Pendant: 3 cm including the bail