Excuse me, what does the number in the quality column on the jade inspection certificate mean?

1 is the weight of jade, and some certificates use the word "total weight".

2. If jade is bare stone (not inlaid), then this total mass is generally marked as "quality", that is, the net weight of jade. If jade is an inlay, then this "total mass" generally includes the total weight of bare stone and metal inlay, because the inlaid part of the inlay is usually not disassembled and weighed when identifying jade.

3. The certificate is not the basis. These data only determine what the material of the gem is, and are not the basis for valuation. At present, the domestic jade market is in a steady development stage, and the quality is also mixed. There are millions of jade bracelets, dozens of jade handicrafts and gifts.

4.B goods refer to those made and molded, then soaked in acid solution to remove impurities, and then artificially beautified, that is, the color is true and the transparency is false. C goods refer to dyed jadeite, that is, jade is true in quality and false in color. All or part of it is dyed emerald green or purple.

5. The following points should be paid attention to in the content of jadeite appraisal certificate: 1, and the appraisal conclusion must be: natural jadeite A goods. 2. Density: 33 ~ 34g/cm3. 3. Refractive index: 664, infrared spectrum analysis: characteristic spectrum of typical jadeite. 5. Magnification inspection: fiber structure, no filler.