In the highly sought-after world of jewelry, there is an obscure gemstone whose experience can be described as bitter before sweet. Once a stand-in for the great, great star ruby, it has lived in the light of the ruby for nearly a century. It is the spinel. Spinel is most precious in red, followed by purplish red, orange-red and light red, the fuller and more vivid the color, the higher the value. But the most expensive spinel is the pink spinel, which is very intense and highly saturated, and even this can be synthesized into a star synthetic spinel. The color is pure, with no dark areas.