First off, because these diamonds are man-made and not geologically grown, we are assured that our ecosystems are preserved. Moreover, the streamlined process of creating lab diamonds produces less paper waste, which is good for the environment. Finally, these diamonds are grown ethically and peacefully. No one was exploited, and no human rights were violated in creating these diamonds.
You can try colored diamonds for a change, like canary diamonds. Yellow, orange and cognac cultured diamonds are also available.