Silver turquoise marcasite double spiral round necklacep2117 this elegant necklace is part of our marcasite collection and features a hand carved turquoise gemstone the stone is framed by sparkling marcasite stones and sterling silver and is presented on an 18 inch long sterling silver chain all our turquoisejewellery is designed and crafted within our very own workshops in ashbourne derbyshire where a team of skilled craftsmen turn the raw turquoise stone into these stunning pieces of jew