A ruby is a precious gemstone, a red variety of the mineral corundum. Its vibrant red color, caused by chromium, makes it highly sought after in jewelry. Rubies are known for their durability and brilliance, ranking 9 on the Mohs scale of hardness
A ruby is a precious gemstone, a red variety of the mineral corundum. Its vibrant red color, caused by chromium, makes it highly sought after in jewelry. Rubies are known for their durability and brilliance, ranking 9 on the Mohs scale of hardness