18ct Yellow Gold Whitby Jet Blue John Double Sided Scroll Top Dagger Fob Necklace, P423. This classic double sided fob necklace is part of our Heritage handmade jewellery collection and features a dagger shaped locally sourced Whitby Jet gemstone on one side and a Derbyshire Blue John gemstone on the other. The stones are framed within a heavy highly polished 18ct Yellow Gold setting with a scroll shaped bail. This item is complete with an 18 inch yellow gold 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 the natural Whitby Jet stone into these stunning pieces of jewellery. You can find other matching gemstone jewellery and other gemstone necklaces on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.