No, we don't think you should invest in diamonds. First, most diamonds are likely to decrease in value over time (except for perhaps a few diamonds so large they have been given a name, such as the Hope diamond). This includes both mined and lab-created diamonds. Second, as lab-grown diamonds disrupt the industry and consumers learn that they are cheaper and better for the environment and people, mined diamonds will lose their allure and won't be able to carry their historic high price. That is fine. This only allows more people to be able to adorn their jewelry with real diamonds. And diamonds can even be used in computing and industry, driving growth and creating jobs. Second, we generally do not believe you should invest in commodities to store wealth (and possibly hide it from tax authorities). Instead, invest your money in real companies that produce real things and employ real people.