Lab-grown rubies are rubies that are grown in a laboratory environment. They are created under controlled conditions and have the same chemical composition as natural rubies.

1. Eco-friendly and humane: Since they are unmined, they do not contribute to the environmental damage and potential human rights issues associated with mining natural rubies.
2. Clarity: They often have little to no inclusions and can appear completely clean to the naked eye, which some people may prefer in terms of visual appearance.
3. Consistency: The color and saturation can be more controlled and consistent compared to natural rubies. Since natural rubies are formed without control over conditions, they can vary widely in color, clarity, and shape due to different impurities present during their formation in the earth. Lab-grown rubies allow for more predictability in these aspects.