Pinduoduo, including all online shopping platforms, has more or less fakes, so it is necessary to contact the merchants and carefully identify the authenticity. But with the official logo, it is really more likely.
How to tell whether pearls are true or false?
Observe the luster of pearls.
Judging from the color, luster, size and shape of pearls, the shape of natural pearls is irregular.
Observe the surface of the pearl.
The growth texture of natural pearls can be seen by magnifying pearls with a magnifying glass, and the phenomenon of extremely rough or thin-layer shedding can be seen by fake pearls.
Touch the pearl.
The method of distinguishing the authenticity of pearls by hand or tongue. If the pearl surface is smooth and comprehensive, and there is no dead angle, you can guess that it is a fake pearl.
Irradiate the pearl surface with ultraviolet rays.
Pearlescent is secreted by shells, and contains a lot of protein, which will produce fluorescence under irradiation.