Sterling Silver Whitby Jet Heart In Heart Necklace. P3007. This feminine, contemporary pendant is part of our Eclipse collection and features the finest Whitby Jet stone which has been sourced directly from the north east coast of Yorkshire. The highly polished cabochon is set within a solid sterling silver double heart frame. 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: 8mm x 10mm.