According to today's headlines. Alumina Redstone products have been recognized by the state. Alumina ruby products are jointly tested and certified by China Geo University (Beijing) Jewellery College, Beijing Zhong Da Gemological Appraisal Center and Beijing Zhong Da Gemological Testing Co., Ltd., and the products are supervised by the Global Gemological Research Foundation. The certification and supervision of these authoritative organizations provide a strong guarantee for the quality and credibility of alumina red stone products.