Good quality and excellent service are the backing. Zhou Dasheng's jewelry requirements are much stricter than those of ordinary companies (Zhou Dasheng > Lao Fengxiang > Leofoo). Zhou Dasheng has strict QC requirements for goods, even if the word "Zhou Dasheng" on the melon buckle is a little vague, it is not allowed.

Zhou Dasheng no longer has its own mosaic factory (OEM mode), mainly based on OEM. There are several cooperative foundries, such as Ji Meng and Baoyi. Before sending diamonds to the factory, you need to fill out a form, which contains detailed information such as ring, metal, diamond size, color, clarity and cutting. Generally speaking, diamonds cut above VG are mainly inspected by NGTC and GIA. Apart from the price premium, the quality of diamonds bought by his family is still guaranteed.