A precious stone typically colored red is ruby. Rubies are known for their vibrant red hue, which can range from a pinkish red to a deep crimson. The color comes from the presence of chromium within the corundum mineral, which is the same family that includes sapphires. Rubies are highly valued not only for their color but also for their rarity, hardness, and historical significance. They are often associated with love and passion, further enhancing their desirability in jewelry.