In this regard, I believe that most brands of jewelry are doing very well. As for the details, it is either OEM or self-produced. At present, a large proportion of processing comes from the jewelry industry in Shenzhen, and the factories are relatively large, so they are basically safe.

Don't worry, you can observe the product.

2: Material steel seal

18K is gold.

24K is pure gold, and in fact, it is usually stamped with a steel seal such as Au999.

3: Fire

There is nothing else to pay attention to. Pure gold does not change color in case of fire, but may change color in other cases. It is recommended to go to a professional jewelry appraisal institution for appraisal.