1, thermal conductivity meter, real jade thermal conductivity meter will light up five squares, and the injected jade will not light up. Heating, putting the jadeite into the wax solution to heat, the jadeite will not change color, and the jadeite injected with glue will fade. Charles filter, real jadeite is red or purplish red under Charles filter, while glued jadeite is green.

2. From the color point of view, the color of the jadeite dyed by glue injection is very floating and fake, while the jadeite of A goods will feel that the color is natural, excessive and natural, with color (that is, where the color comes from).

3. Put the adhered jadeite into the molten wax, and the injected pigment will slowly separate out. In this way, the detected sample will not be destroyed, and the authenticity can also be identified. Observed by Charles filter, the colored emeralds are purplish red under the mirror, and the natural and authentic colors remain unchanged.

4. Method of identifying dyed jadeite: Look at the color and color root of jadeite itself. Color root: no matter what color of jadeite, you can see the dot or strip structure. The dark parts in jadeite will gradually expand around and gradually become shallow. The dark color in this transition section is the color root.

5. Glue injection will form an unnatural aesthetic feeling. It is precisely because of the second glue injection that "the structure of jadeite is destroyed and the original optical properties have changed, so the color distribution of jadeite in the expansion of B goods has no layering."

6. Jewelry stores will be equipped with Charles filters, and the jadeite filtered by Charles filters will appear purple. If it is other colors, it means that it is glued jadeite, but this method can only identify glued jadeite, and other fake methods can't identify it, which is limited. Fluorescent lamps shine on jadeite, giving off strong blue-white fluorescence. This is not natural jadeite, but rubberized jadeite.