Because Mankalong jewelry is both a manufacturer and a seller, it has its own industrial chain, including production, sales, brand and so on. In the same brand reputation, the same quality diamond bracelet and Mankalong diamond bracelet can be cheaper than other brands. Lao Fengxiang's inventory turnover is faster. On the one hand, gold, as the main jewelry purchase category in China, has the characteristics of relatively high consumption frequency and fast turnover rate. However, Lao Fengxiang's product structure is dominated by gold, so its inventory turnover rate is significantly higher than that of Zhou Dasheng and Chow Tai Fook, which have a high proportion of inlaid jewelry. Because Mankalong is a manufacturer and a seller, it has its own industrial chain, including production, sales, brand and so on. In the same brand reputation, diamond necklaces of the same quality can be cheaper than others.