Sterling Silver Whitby Jet Large Open Heart Necklace. P941. This is a beautiful abstract heart shaped pendant, with a sterling silver frame that features highly polished hand carved Whitby Jet gemstone, with an open centre. Presented on an 18 inch sterling silver chain. All our Whitby Jet jewellery is designed and crafted within our very own workshops in Derbyshire where a team of skilled craftsmen transform the natural 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: 33mm x 23mm.