Alexandrite rings are highly valued for their remarkable color-changing abilities, known as the alexandrite effect. This gemstone shifts in color from green or bluish-green in daylight to a purplish-red or reddish-purple in incandescent light, owing to its unique mineral composition and crystal structure. Discovered in Russia's Ural Mountains in the 1830s, alexandrite is named after Alexander II of Russia and has since become a symbol of creativity, imagination, and prosperity. Due to its rarity and stunning optical properties, alexandrite is a coveted choice for engagement rings, offering a blend of elegance, history, and symbolism.