It's true. Feng Wan Jewelry Trading Center officially became a registered trademark after being audited by the State Trademark Office in 2008. The trading center has a national inspection agency, and the diamonds sold are genuine and can be sent for inspection at any time. Feng Wan Jewelry Trading Center is located at No.59, North Street, Xinjiekou, Xicheng District, Beijing, and in the Xinjiekou business district within the Second Ring Road of Beijing.