18ct white gold, diamond and coloured diamond necklace, Luca gems, designed as an open work flowerhead, centring a claw-set radiant-cut diamond of yellow tint weighing approximately 0.93 carat, bordered by brilliant-cut near colourless diamonds, framed by petals pave-set with near colourless diamonds accented at intervals with similarly cut diamonds of orange tint, the near colourless diamonds and diamonds of orange tint together weighing approximately 2.32 carats and 0.45 carat respectively, completed by a trace chain spectacle-set at intervals with eight brilliant-cut near colourless diamonds, pendant diameter approximately 38 mm, chain circumference approximately 410 mm, pendant signed Luca for Luca gems. Please note that the diamonds of yellow and orange tint have not been tested for natural colour origin.