1 and Shili Jewelry bought these gems in bulk at a lower price, thus reducing the cost of each gem.

2. Compared with physical stores, online stores can save some operating costs, such as rent and employee salaries, and these cost advantages can be translated into lower prices.

3. By offering lower prices, Shili Jewelry can attract more customers and increase sales and popularity.

4. Shili Jewelry adopts the strategy of mass sales, that is, attracting customers to buy at a lower price, and then making profits through mass sales.