If you like magic, specifically the magic of science, you will like Alexandrite, the color-change treasure. In daylight, it appears greenish, carrying a full-spectrum visible light. In the lamplight, it is a red gem with a warm raspberry tone. You could see it flick back and forth by switching from fluorescent to incandescent light. The value of the gemstone increases as the color changes and becomes more distinct.
It is genuinely spellbinding to see the magnificent changing colors in this beautiful gem; you might feel the mystical magic and lore associated with it. It is said to reinforce instinct, help in creativity, and inspire the creative imagination.
Initially uncovered in Russia's Ural Mountains in the 1830s, it has since been discovered in Sri Lanka, East Africa, and Brazil. However, this gem is scarce.
Refer to this study by GIA on Alexandrite for more details.