what can I say? After all, we are a small place, and there is no such professional place. But the average gold shop owner will still have some. If there is a maintenance master in some more formal jade selling places, he will take a look at it for you. For example, the maintenance master of the jade shop on the first floor of sm Plaza in Jinjiang will tell you whether it is natural or not, but he will not help you evaluate it. He is afraid of getting into trouble. So I suggest you find someone familiar with the store to make an offer.