Wanshan Jewelry Garden, Tianbei 4th Road, Luohu District, Shenzhen City, Guangdong Province. According to Baidu map, Zhongjia Jewelry Quality Testing Center is located in Wanshan Jewelry Garden, Tianbei 4th Road, Luohu District, Shenzhen City, Guangdong Province. Jewelry has a broad sense and a narrow sense. Jewelry in a narrow sense refers to jade products, while jewelry in a broad sense should include jewelry made of gold, silver and natural materials (minerals, rocks, organisms, etc.). ) has certain value.