Chow Tai Fook and Zhou Shengsheng are better, while Zhou Dasheng and Leofoo are lower. Chow Tai Fook and Zhou Shengsheng belong to the four major jewelry brands in China and Hongkong, and they are also among the first-line jewelry brands in China. However, Zhou Dasheng and Leofoo have not been established for a long time, and they are not as good as the first two in details, styles and services. Chow Tai Fook, founded in 1929, is mainly engaged in the design and sales of jewelry inlays, platinum or gold products, gold products and watches. It is one of the first large Asian jewelers to enter the second, third and fourth tier cities in China, and 999 gold has been set as the gold quality standard in China and Hongkong. Zhou Dasheng was founded in 1999, mainly engaged in the design and production of jewelry, brand operation, chain operation and other businesses. The main products include diamond inlaid jewelry and pure gold jewelry. Zhou Dasheng pioneered "Scene Style Jewelry" in the industry, and once it was launched, it was favored by consumers, leading the trend and becoming a leader in the industry.