Many regular brands and jewelry stores do not engrave steel seals on every diamond ring when they manufacture and sell it.

Protect the diamond: Too many marks may scratch the diamond and affect its beauty. Especially in the fine design of diamond pattern, too many traces may destroy its overall aesthetic feeling.

Anti-counterfeiting means: Although steel seal is an effective anti-counterfeiting means, in order to prevent counterfeiting, many high-end jewelry brands do not use steel seal on all products. On the contrary, more complex anti-counterfeiting technologies can be used, such as laser lettering and DNA coding.