Alexandrite

Discovered in Russia in the early 1800s, alexandrite is named for Tsar Alexander II and was the national gemstone of tsarist Russia. With an ability to change its colour from green to red depending on the light source, alexandrite is a very unique and beautiful gemstone. A Mohs hardness rating of 8.5 makes alexandrite a very durable and trouble-free gemstone.

Alexandrite
Colour Description
Green or blue-green to red or red-violet Mohs hardness rating of 8.5