Man made or lab-created diamonds vs. natural diamonds. No, lab-created diamonds are not as ‘good’ as natural stones, because they are fake. They are essentially worthless. To the untrained eye, there is likely no difference in the appearance of natural stones and lab-created ones. It is a matter of taste. If it does no bother you to wear designer knock-offs, then you may be a good candidate for a lab-created diamond. However, if you are particular about the fabrics of your clothing, for instance and you would never consider wearing a fake anything, then natural diamonds may be your choice.