2. Selection of "shape": Due to the limitation of natural environment, natural pearls are very rich in shapes, which can be roughly divided into six types: A 1 perfect circle, A2 near circle, B ellipse, C oblate circle and D steamed bread-shaped E abnormity. There is a saying that the shape of pearls is "round and smooth". The rounder a pearl is, the more beautiful it is, and the higher its roundness is. Round pearls give people a noble and perfect texture. If it is a pearl with a diameter of 13- 15_, it is the best.
3, choose "color", pearls have very rich colors, white, gold, silver, pink, purple, black, gray and so on. , and the color is different. Internationally recognized high-quality and high-priced colors are: white with rose halo, black with green halo, rose with pink halo and pink with rose halo. But if you choose the color of pearls from a practical point of view, it is best to choose white pearls rich in pearls, because they are suitable for different skin colors and clothes.
4, picky "flaws", natural pearls are naturally produced jewelry, so there will be some small flaws on the surface. When selecting pearls, the fewer bumps, marks, spots and pits on the pearl surface, the better. Generally, it is an acceptable standard that the naked eye can't see the defects 0.5 meters away. If you can't see any flaws in the magnifying glass, it is the best pearl in the world.