Rubies are a variety of corundum and the most coveted of the red gems.
It is also the birthstone for July. The colors range from medium to dark orangy red to purplish red. All other colors of corundum are Sapphires. Wearing a ruby was once thought to bring health, wealth, wisdom, and success in love. Worn in a ring or brooch on the left side, it gave the magical ability to live in peace among enemies.