1. Unit: Guangzhou Gold, Silver and Jewelry Testing Center is a provincial jewelry testing institution, which has passed the rigorous evaluation and assessment of metrological certification, examination and acceptance and national laboratory accreditation, and is a jewelry quality dispute inspection unit designated by the Provincial Consumer Council.

2. Inspection: Guangzhou Gold, Silver and Jewelry Inspection Center has set up the15th professional skill appraisal station for specific jobs in jewelry industry, which is an impartial third-party gold, silver and jewelry inspection laboratory. The report and certificate issued by it have legal effect, and the test results are internationally recognized, so Guangzhou Gold, Silver and Jewelry Testing Center is good.