Alexandrite gemstones are the magicians of all the gems. These color-shifters are astonishingly charming in appearance, making them exceptionally valuable among gemstone collectors and celebrities alike. Alexandrites even rival precious gemstones when it comes to rarity and uniqueness.  Worry not if alexandrite gemstones are not as hard as diamonds, rubies and sapphires. With a hardness score of 8.5 on the 10-point Mohs scale of hardness, alexandrites are quite durable for d