Play of colour, body colour and transparency are the three criteria which determine the price of a fire opal. The more transparency and 'fire' it has, and the more intense the deep red of its body colour, the more valuable it will be. The rarest, and thus the most highly esteemed, is the intense red-orange fire opal from Mexico with its strong play of colour. A higher value is placed on fine cabochons with the much loved typical play of colour of the opals than on good, faceted fire opals. These gems, which glow from orange to red, are treasures which appeal most of all to active people with a positive approach to life. Their warm, fiery colour gives us vigour, fills us with the joys of life and opens our senses to the beauty of Nature. After all, fire opals are themselves a piece of Nature in its most beautiful form.