Rubies are known for their beautiful red color. In fact, “ruby” is derived from the Latin rubeus, which means “red.”
Their color may range from deep blood red to paler rose red.
Symbolically, the ruby’s deep-red color means love and passion.
Rubies are a variety of corundum, a crystal made of aluminum oxide. (The blue variety of corundum, on the other hand, is sapphire!) The ruby’s color is due to the presence of chromium, which also makes the gem subject to cracks. High-quality...