As long as it is not bought in that roadside workshop, there is nothing wrong with gold. Generally, the problem is not big. Before leaving the factory, gold will be tested once in the gold jewelry trading center. The Quality Supervision Bureau will also conduct regular spot checks on many gold ornaments. Although there are several brands, they may also come from a factory. I used to work in the gold jewelry trading center for a while, but generally speaking, the purity of gold is no problem.