Ruby: The BEST Red Stone Engagement Ring! - Do Amore
May 08, 2020 · So, if the red stone isn’t “perfect” looking, that’s a good clue that it may be natural. Imperfections, or “inclusions”, are another way to tell. It is pretty rare that a synthetic stone has eye-visible inclusions. So, if your red stone has cracks or black spots, it is more likely to be natural.