With its ancient origins and deep black intensity whitby jet is the perfect choice for jewellery here the whitby jet and marcasite pear shape pendant has a rich polished surface and is embellished with a marcasite studded sterling silver that glistens and glimmers as it catches the light hand carved in england and exclusively boxed for english heritage it makes a beautiful keepsake gift for a special dayour whitby jet jewellery is lovingly made by hand in the derbyshire workshops of family ru