Alexandrite is a rare variety of mineral that changes color depending on the light, according to the Geological Institute of America. Some even call it "emerald by day, ruby by night." The stone ...

Alexandrite was first discovered in Russia in the 1830s and named for Alexander II, the Czar of Russia. Until recently, Russia was the only known source of the gem, but East Africa, Brazil and Sri ...

Unlike mined alexandrite gemstones, engagement rings with alexandrites that are lab-grown are free of inclusions and conflict, as they have a minimal environmental impact. This makes them highly ...