Sterling silver blue john pearl large cross heart necklace p2157 this elegant necklace is part of our cross heart collection it features a large sized hand carved heart shaped blue johnstone that has been sourced directly from the derbyshire blue john cavern in castleton the individual highly polished blue john has been framed within a one pearl sterling silver mount that embraces the gemstonein a winged cross design itsits gracefully on a 18 sterling silverchain completed by a classi