Silver blue johnmarcasite four arc round pendant necklacep2140 this blue johnand sterling silver pendant features a hand carvedround blue john gemstone set within a detailed floral frame accented with sparkling marcasite gemstonesthis intricate piece is a perfect gift for yourself or a loved one itis supplied complete with an 18 sterling silver chain all our blue john jewellery is designed and crafted within our very own workshops in ashbourne derbyshire where a team of skilled cra