The quality control of these jewels is very strict in this country. All diamonds must be inspected by the quality inspection department before they can be sold on the OTC market.

Li Qiang Jewelry is also a large local chain brand in Yunnan, and all diamond products have relevant certificates. Moreover, diamonds are very distinctive. Its specific gravity, thermal conductivity and thermal expansion coefficient are all standard and amazing. It is one of the materials that must be used in many aerospace industries, and its characteristics are incomparable. The fire color of a diamond can't be fake. You can find information about diamonds to confirm.

If you are not at ease, you can go to the relevant departments for identification. It doesn't really cost much. Now the technology is very developed. A thermal pen can make you realize how amazing and charming real diamonds are in one minute.