This birthstone necklace for summery July is decorated with a total of 9 ruby coloured, cubic zirconia charms. The dainty charms measure just 5mm wide and hang from tiny jump rings. Each one is spaced evenly so that they are spread outwards from the centre to the collarbone. The supporting chain has a fine, 1mm curb and a diamond cut construction made from sterling silver. It benefits from a 2 inch extender chain which is secured using the bolt ring clasp.