“United Nations” is a textbook example of the rarest and most sought after pattern in black opal, the rare “Harlequin” pattern. Most miners and cutters are lucky if they see one “Harlequin” pattern in a lifetime! With red being the predominant colour, and the majority of the world’s flags red in colour, this gem has been named the “United Nations” with the patchwork symbolising many nations sharing the same colour. This gem is truly worth of such a title. Price on application