Rubies are an ancient gemstone, Indians called them Ratnaraj or king of precious stones. Rubies are the perfect embodiment of red color. In our minds when we hear the word ruby with instantly think about the red color. That color and ruby gemstone is associated with passion, power, romance, adventure, fine, and excitement. Scientifically, ruby gemstones are a type of corundum, which is a crystalline form of aluminum oxide, same sapphires, but sapphires are blue and rubies are red because of the presence of chromium. A full of color cursor made from a ruby material.