There are only grams and pure gold on the winning number jewelry ring. Inquire about relevant information. Regular domestic gold and silver products must be marked with grams and pure gold. As one of the largest jewelry enterprises in China, Win Digital Jewelry is the world's leading platinum jewelry manufacturer and retailer, and also one of the industry process standard setters. Since the establishment of 1987, Winsome Jewelry has developed into a large-scale professional jewelry enterprise integrating R&D, design, production and sales, covering all kinds of jewelry such as diamonds, gold and K gold.