The Unique Appeal of Alexandrite Solitaire Rings Alexandrite solitaire rings combine the beauty of alexandrite with the classic design of solitaire rings. The result is a piece of jewelry that is both stunning and sophisticated. One of the unique properties of alexandrite is its ability to change color. In daylight or fluorescent light, the gemstone appears green, but in incandescent light, it takes on a reddish-purple hue. This phenomenon, known as the "alexandrite effect," makes the gemstone even more fascinating and alluring. In addition, the rarity of alexandrite adds to its appeal. It is estimated that there are only a few alexandrite mines in the world, most of which are located in Russia, Brazil, and Sri Lanka. This rarity makes alexandrite a prized possession for those who appreciate rare and unique gemstones.