Are you a private individual, a professional? Discover sapphire tumbled stonesDescription of sapphire tumbled stonesSapphire stone is one of the precious stones such as emeralds, rubies and diamonds. It is part of the oxide group and belongs to the rhombohedral crystal system. Like ruby stone, sapphire is a variety of corundum. The sapphire stone comes in a transparent form and has a glassy appearance luster. Its color is pale blue, midnight blue, with variations of yellow, orange, purple or colorless. Its different shades of color come in particular from its very light chromium, iron and titanium content. Sapphire stone also has aluminum oxide crystals that give it these shades of color.Its formation takes place in the heart of magmatic rocks or within metamorphic rocks. Its name sapphire comes from the Greek word “sappheiros” which means “blue”. During antiquity, the sapphire stone was