The authenticity of the silver plate selling jadeite needs to be analyzed in detail, because there are both real silver plates and fake silver plates in the market. If the buyer is not sure about the authenticity of the silver plate, the following methods can be used for preliminary identification:

1. Observation appearance: Real silver holders generally have a bright surface, which is smooth and has no defects such as bubbles. Fake silver plates usually have a dull surface and may have flaws and bubbles.

2. Use a magnet: Real silver is nonmagnetic, so if the silver frame is attracted, it may not be real silver. However, some unscrupulous merchants can fill silver trays made of artificial materials in their products to avoid identification.

3. Use chemical reagents: real silver should change its color through some chemical reagents, while fake silver usually keeps its color unchanged.

It should be noted that the above methods cannot 100% guarantee the authenticity of the silver plate. If the buyer wants to confirm the authenticity of the silver plate, it is best to hand it over to a formal jewelry appraisal agency for appraisal.