The mainstream of silver products is 925 silver, which is usually alloyed with 92.5% pure silver and then electroplated to maintain the brightness and hardness of silver. However, silver products are prone to oxidation and blackening, and their value is relatively low. The so-called high-end products of Chow Tai Fook and Lao Fengxiang are just familiar brands. From the technical and technological point of view, the processing of silver jewelry is relatively simple. Silver ornaments are generally inlaid with Austrian crystals or zircon.

18k gold or platinum is widely used in diamond jewelry, and it is a precious metal with high cost. Diamond inlay technology is relatively complicated because of its high value. In order to avoid falling stones and damaging diamonds, the process precision is very high.