Hongcheng Jewelry City has regular purchase channels, and the jewelry sold must have corresponding logos, including the material and content of the jewelry.

Diamond jewelry can be identified by water drop method, and diamonds should be cleaned and wiped to ensure that there is no grease on their surfaces. Then, drop water on the diamond. If water drops can stay on a diamond for a long time, it is a real diamond. If the water drops disperse immediately, it may be a diamond imitation.