Effortless Glamour: Sapphire Jewelry for Effortlessly Chic Style Sapphire is a deep blue corundum-based stone. It comprises aluminum oxide with iron, magnesium, chromium, and titanium traces. Sapphire is a hexagonal crystal with a Mohs hardness of 9. It is a valuable gemstone that is greatly sought. Sapphires are starry stones. They attract with their glittering hue, enigmatic abilities, and regal past. We delve into the drama and thrill of these wise and venerable treasured treasures.