About Lab Diamond Sourcing

Lab Diamond Sourcing is a China-based sourcing and supply coordination service for lab-grown diamonds and custom jewelry. We work with independent jewelers, bridal studios, jewelry brands and professional buyers who need clearer specifications, verified documentation and coordinated production support.

We are based in Guangzhou and work through a network of diamond, cutting, jewelry manufacturing and quality-control resources. We do not present ourselves as the owner of every facility involved in the supply process. Our role is to help buyers identify suitable options, verify key information and coordinate sourcing and production.