1, Yun Jian (Yunnan) Jewelry Testing Center is located in Ruijiang Road, Ruili City, and there is also a laboratory in the parking lot of Harigu, Shuhe Ancient Town. It is a third-party testing institution recognized by the state and can issue fair data and certificates. The agency's inspection fee is between 10 yuan and 50 yuan.

2. Lijiang Quality and Technical Supervision and Testing Center of Yunnan Quality and Technical Supervision Bureau is located at Taihe West Road, Xianghe New District, Gucheng District, Lijiang City. It is a testing organization established by government departments, which can test the quality and content of silver ornaments. The agency's inspection fee is between 10 yuan and 50 yuan.