So I have been wondering this forever. I do not own any lab grown diamonds and am unexperienced. But as far as I know, they are (at least in "physical" terms) just the same as minded diamonds. Only difference - they were created by men in a laboratory and in a much shorter time. Now. Once someone buys a lab grown diamond it enters the open market. How can such a stone be verified as lab grown further on, if not declared by the vendor? Still many stones are sold without certificate which would make it easy to just sell it as diamond (for a higher price) and not specifically as lab grown diamond. Or?