7.5% discount. According to official website's query of Chaohongji Ruby, Chaohongji's gold rings, inlaid /k gold ornaments and rubies are all 7.5% off. Chaohongji trademark is the own jewelry brand of Guangdong Chaohongji Industrial Co., Ltd., which is a famous trademark in Guangdong Province. Is a design, processing and production, wholesale, retail platinum inlaid jewelry-based large enterprises. The company was established in 1996, and the brand "Chaohongji" was established in 1997 in July.