I have carefully searched for quality lab created rubies that can be tension set in my ruby titanium rings. The lab created rubies I carry in my ruby titanium Rings are flawless, created from the same material as a natural ruby, and have a very premium even deep rich color. The lab created rubies that I use are of such good quality that it would take a trained gemologist to identify it from a flawless natural ruby. It is also important to note that the lab created rubies in my ruby titanium rings are very deep and rich in color, not to be confused with lower quality "Red Cubic Zirconia" which is NOT lab created ruby. At BrinkJewelry I pride myself on making the Best ruby titanium rings on the market.