Diamond Supplier is a premium membership for suppliers on StoneContact.com. Members are provided with comprehensive ways to promote their products, maximizing product exposure and increasing return-on-investment.

Verified Supplier is mainly to prove the authenticity of the company, including Business license, Trade license, Company authenticity, which is conducive to enhance the buyer's trust in suppliers and their products, reduce the cost of early communication.

The supplier must provide certificates or permits issued by the relevant authorities in the host country to grant the supplier the right to exploit, utilize, benefit and manage the quarry resources.