Rare Gemstones II:
Named for Tsar Alexander II of Russia, this exceedingly rare gemstone was thought to be mined out after the original deposits, found in 1830 in Russia’s Ural Mountains, were nearly exhausted.
Alexandrite is a color-changing gemstone: its hue shifts from red to green depending on the light it’s exposed to.
Recent finds in Brazil, East Africa and Sri Lanka have brought this stone back on the market, but it is still one of the world’s most coveted stones.
Composition: Beryllium, Aluminum, Oxygen | Market Value: $12,000 per carat.