18ct White Gold Blue John White Mother Of Pearl Double Sided Round Dinky Fob Necklace, P218. This classic double sided fob necklace is part of our Heritage handmade jewellery collection and features a round locally sourced Blue John gemstone on one side and a round White Mother Of Pearl gemstone on the other, for the choice of two elegant looks. The stones are framed within a heavy highly polished 18ct white gold setting with a simple gold bail. This item is supplied complete with an 18 inch white gold chain.  All our gemstone jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen transform the natural gemstones 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. Dimensions: 28mm x 20mm, Blue John & Mother Of Pearl stones; 16mm x 16mm.