Sterling Silver Whitby Jet Bottle Top Necklace. P010. This pendant is part of our Heritage handmade jewellery collection and features a hand carved round shaped cabochon of Whitby Jet stone, which has been sourced directly from the North East coast of Yorkshire. The cabochon is highly polished and set in solid sterling silver with ridged detailing beneath the bail. Sold complete with an 18 inch sterling silver chain which fastens with a classic bolt ring style clasp. 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 stunning pieces of jewellery. You can find other matching Whitby Jet jewellery on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging. Dimensions: Whitby Jet: 10mm.