1. The "ox blood red" color is the most precious
We know that corals are precious to red, and this red has a deep and light, the most precious of which is the "cow's blood red" color coral, which is bright and deep, and has an incomparable luxury. For red coral, the lighter the color, the lower the value, of course, it is not absolute, such as pink and white coral is still popular with the majority of female friends.
2. The smoother the surface, the higher the coral price
Coral is a natural product, more or less will have some flaws, even after polishing, its surface will have some dark lines or spots can be seen, but it is normal, those residual lines or spots are coral stretch marks. Of course, in the natural harvest state, the more complete the coral, the better, the smoother the surface, the higher the price of the coral.
3. Waxy luster is the real thing
Coral's luster is not as reflective as glass or porcelain, and coral has a waxy luster, which is smooth and bright, but soft and not dazzling.