Gemisphere’s Red Spinel is a deep, bright red that is close to the red of the rainbow. Spinel that is distinctly pink is not considered therapeutic Red Spinel and has different energetic properties. Our Red Spinel is unheated and treatment-free for maximum therapeutic power. Therapeutic Quality Red Spinel Again, the color of therapeutic-quality Red Spinel is a deep, bright red that is close to the red of the rainbow. The more true-red the gems are, the stronger their energetic effects will be. Spinel gems that are more distinctly pink than red are not considered therapeutic Red Spinel and have different energetic properties. A small number of inclusions in Red Spinel do not interfere with its energetic work. The Spinel energy bypasses the other mineral. Any kind of artificial treatments will render Red Spinel non-therapeutic. While most high-quality Spinel is untreated, some heat-treated Red Spinel has appeared on the market and should be avoided for therapeutic use. Gemisphere’s Red Spinel is completely natural and free of all treatments. The finest dark Red Spinel can look like fine-quality Ruby. To distinguish our Red Spinel and Ruby necklaces, we have included a small gold bead on either side of the clasp in our Red Spinel necklaces.