1. Direct selling of origin: If you have the opportunity to go to the origin of pearls, you can buy pearls directly locally, which is usually cheaper than buying them in other cities or countries. Hainan, Japan, Thailand, Philippines and other places are famous pearl producing areas.

2. Pearl wholesale market: In the jewelry wholesale market, there will be some pearl wholesalers who can provide wholesale services for pearls at relatively low prices.

3. Online shopping platforms: Some online shopping platforms also sell pearls. You can choose the most cost-effective pearl purchase channel by comparing the prices and quality of different merchants.