In the jade appraisal certificate, if the remarks indicate "commonly known as' A' goods", it usually means that the jade is untreated natural jade, that is, pure natural jade. This statement comes from the definition of the word "A goods" in the jewelry and jade industry.

"A goods" refers to natural jadeite without any artificial chemical treatment, and its jade quality, color and structure are all natural. Therefore, in the jade appraisal certificate, if the remarks indicate "commonly known as' A' goods", it means that the jade is pure natural jade and has not undergone any chemical treatment or artificial treatment. This kind of jade is usually of high value and has the potential to preserve and appreciate.

It should be noted that although "A goods" refers to pure natural jade, it does not mean that the jade is completely free from flaws or problems. When buying jade, we should not only pay attention to whether it is "A goods", but also carefully check its quality, color, transparency, luster, etc. to ensure that we buy high-quality jade.