I really don't understand why many friends explain the rationality of the present situation so much. First of all, I participated in the training course of national inspection last year, and I heard from the teacher of Beijing headquarters of national inspection that the related refinement work is being studied, and I believe that the quality index of gemstone appraisal will be measured in the future. In the final analysis, there is no clear standard for this matter, and there is no standard for local appraisal institutions to follow, even if they want to do appraisal. In fact, consumers of precious stones urgently need to give a clear conclusion about the relevant indicators of material evaluation, just like the certificate from colored gems abroad. Take the crystal industry where I work as an example, the appraisal institutions of relevant cooperation are not unwilling to pay, but unable to pay. There are two reasons: First, there is a lack of relevant standards. Without a basis, it is naturally impossible to draw conclusions. Second, the appraisal cost is too low to carry out such time-consuming work. At present, for VIP customers like me, my appraisal fee is 10 yuan/piece, and I can also get 5 yuan/piece during the activity. I think it is very valuable that such a fee can prove the truth and give a proof. Even if it's not a VIP, it's usually listed at 50-200, and it's still difficult to pay for evaluating the indicators of gems. Standardizing the quality evaluation standard of gemstones can boost the development of the whole industry. Colored gems's sales largely benefit from the standardization of quality evaluation, and relevant certificates reduce the difficulty of consumers' purchase restriction and purchase threshold. In the current gemstone industry, I believe that standardization will be implemented and carried out in the future. The appraisal institution conducts qualitative analysis on the samples submitted for inspection, and makes judgments according to the data, that is, determines what the samples are and whether they have been treated. The evaluation and description of the quality of jewelry and jade belongs to the evaluation category. The key to your question is whether you have communicated with the merchant about the quality of the goods when you bought it. For example, the merchant promised that my goods were perfect (without cracks) but actually there were cracks. In this case, you can defend your rights and ask for a refund. Everyone who works in this industry knows that jadeite is rarely perfect. In the process of trading, you can see for yourself whether it is good or not, and you can buy and sell it freely. You can see if it's worth buying.