Silver whitby jet marcasite thirteen stone drop triangle necklacen995 this stunning statement piecefeatures a large triangularshaped hand carved whitby jet gemstone as the focal point with additional triangleshaped whitby jet gemstones along the length of the necklace alternating between marcasite set circles each stone is framed in sterling silver and accented with sparkling marcasite gemstones for a beautifully ornate and vintage feel all our whitby jet jewellery is designed and craf