Sterling Silver Whitby Jet Marcasite Curved Oblong Necklace. P1318. This classic pendant features a large cabochon of Whitby Jet, surrounded by an ornate sterling silver frame decorated with Marcasite. The necklace offers a very bold look with added sparkle, hanging gracefully from an 18 inch 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 along with matching Whitby Jet pendants on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging. Matching items are available within this collection. Dimensions: 35mm x16mm, Whitby Jet; 14mm x 9mm