These are the Rarest and Most Beautiful Gems in the World - Page 6 of 9

Alexandrite gems

Composition: Beryllium, Aluminum, Oxygen

Market Value: $12,000 per carat

Named after tsar Alexander II of Russia, this rare gemstone was believed to be mined out after the original deposits found in 1830 in the Ural Mountains in Russia. It was found at a nearly extinct state. The gemstone shifts in colors , from red to green, depending on the light it’s exposed to. Records show that this most coveted stones are back in the market in Brazil, East Africa, and Sri Lanka.