Yes According to Ozilai official website, Ozilai brand insists on scientific and technological innovation, with novel and unique product design and excellent quality, which is deeply favored by customers and consumers. They are all gold inlaid jade authorized by the official certification body, which is true. The certificate presented can be verified by the inquiry number. Aozilai is a jewelry brand. The main products of brand Aozilai are: jade, jet, golden bead, jet, gold inlaid jade, gold necklace pendant, emerald rose and so on.