We understand how difficult it is to select a reliable supplier for your unique and one-of-a kind product. It is against our principles to vilify our competitors or companies that are not authentic manufacturers.
Check if a potential manufacturer offers a detailed and authentic description of the creation process of the product on their website.
Check if there is a video of the lab and the diamond incubators on the website.
Ask the manufacturer if they can offer you an authentication program to prove the origin of your diamond.