2. Hello, I am engaged in jewelry appraisal. Spot check means that the refractive index of this gem is about 6 1, just referring to what kind of gem it is. Due to the structure of nephrite, the spot check data is not particularly clear, generally around 62, and the measured 60 is within the normal range, so it is impossible to judge the quality of jade.

3, low-end generalized Hetian jade material, gold inlaid jade craft, the individual is not big, the cost is very low, the wholesale market is generally tens of yuan, in the shopping mall retail, it is often a false high price, and then the lottery is discounted, and the transaction price is more reasonable at two or three hundred yuan. If you are tall, you will feel cheated. For reference only.

4. In the case of similar texture, topaz is the most expensive because of scarcity, followed by white jade, and the value of blue white jade, sapphire, jasper and jet is lower. Sheep fat jade refers to extremely white color, delicate texture and very expensive price. Many white jade is blue in white or gray in white. Look at the skin. Hotan seeds often have skins.