Diamond and ruby portrait brooch, circa 1910, centring a glazed compartment with a portrait miniature framed by an openwork scroll and shield-shaped surround millegrain-set with old mine-cut diamonds, surmounted by a crown decorated with similarly cut diamonds and calibre-cut rubies terminating on a swing drop collet-set with diamonds, the diamonds together weighing approximately 4.10 carats, approximately 60 x 40 mm, later brooch pin and swing drop, mounted in 18ct gold and platinum.