Darya Gems Co., Ltd. Darya Jewelry was established in 2016. The company is located in Wuzhou City, Guangxi, China, the largest synthetic gemstone production base in the world. We are specializes in the processing and production of various gemstones such as moissanite and zircon.and have a 500 square meter production workshop, our company has complete advanced fully automated production equipment and professional production lines, which can quickly produce in batches. have sufficient inventory and quality assurance, and a professional domestic and foreign trade team.