Once fired, it is also internationally recognized as a natural ruby. As long as the number of carats is enough and the color and purity are good, there is no problem and it has the value of preservation and collection. Of course, if you don't burn it, the value will be higher. But now more than 90% of Myanmar Hongbao bought from Thailand has been burned, so we have to buy a larger carat, and now only Mozambique still has it.