No, according to the query of China Jewelry Industry Network, the diamond of the winning number jewelry is a kind of artificial diamond, also called laboratory-cultivated diamond, which is made by high temperature and high pressure or chemical vapor deposition in the laboratory. Winsome Jewelry is a brand of Zhejiang Winsome Jewelry Co., Ltd., headquartered in Shaoxing, Zhejiang. Adhering to the spirit of persistence and innovation, integrating R&D, design, production, sales and service, we are committed to becoming a trustworthy jewelry brand for China consumers.