1. macroscopic observation: observing the internal characteristics with transmitted light, the transparency of natural jadeite is uneven, the transparent part is clear and transparent, the boundary with the opaque part is clear, and there are brownish-black impurities inside. The substrate of B goods is chaotic, with no clear and transparent parts and no brown and black impurities.

2. Magnifying glass or microscopic examination: it is necessary to use transmitted light to observe the internal structure of particles. After bleaching and filling, the structure of jadeite B is loose, the grain boundary is blurred, the grain is broken, the cleavage is discontinuous, and the jadeite B becomes light or disappears. Moreover, the overall white, cloudy and foggy, the transparency (planting water) is basically the same everywhere, and the overall planting water becomes single, with no transition from transparent to translucent.

3. Identification by Fourier infrared absorption spectrometer. In the infrared spectrum, jade B has an absorption peak of epoxy resin near 3050 wave number, while jade A has no absorption peak. This method is the main appraisal method of jewelry appraisal institutions at home and abroad.