Cabriel, three, three, three. Really. According to relevant public information, Sansan has the right to sell Kaibairui jewelry, all of which are genuine and expensive, which is true. Kaibairui Sansan jewelry has bright color, hard texture, bright luster and professional cutting. One of the reasons why diamond is the most expensive gem is that it is the hardest in the world and is not afraid of corrosion.