Henan Longzhifang Electronic Commerce Co. Ltd., Which established in 2017 and located in Zhengzhou city, Henan province, China, is a professional supplier dedicating to manufacturing and exporting lab-grown HPHT/CVD diamonds and diamond jewelries.As a reliable supplier, we provide excellent quality of products. Whether you select the current products from our homepage or want customized design according to your requirements, our experienced staff members are always available to discuss with you and ensure full customer satisfaction.