The gold produced using this method is also as pure as it gets: 99.9 percent pure. But is lab-produced gold as valuable as natural gold? Kashefi and Brown have yet to test the market on that, but they suspect the method they use in the lab is similar to how many gold nuggets get produced in nature. After all, both gold chloride and Cupriavidus metallidurans occur naturally. All it takes is for the two of them to naturally run into each other.
Given that the price of gold is currently through the roof, you might already have gotten the idea to begin duplicating this process in your garage. But before you get that twinkle in your eye, keep in mind that Kashefi and Brown have already crunched the numbers, and they attest that the experiment is not cost-effective enough to turn a worthy profit.