1. Zhangzhou can identify and issue a certificate of sapphire authority at the Treasure Cultural Relics Identification Center. The address is located at No.2, West Lake Inner Road, Shengli, xiangcheng district, Zhangzhou, Fujian. Treasure Cultural Relics Appraisal Center mainly buys coins, antiques, jade articles, stamps and philatelic products, calligraphy and painting, Yin Shi, porcelain and other works of art.
2. Guangzhou Gemstone Quality Supervision and Inspection Institute, also known as the National Gemstone Quality Supervision and Inspection Center, can identify and issue sapphire authority certificates. The address is No.2, West Lake Inner Road, Shengli, xiangcheng district, Zhangzhou, Fujian.