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 color 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.
Green or blue-green to red or red-violet
Mohs' hardness rating of 7 to 7.5
Oval Simulated Alexandrite Earring and Pendant Set in Sterling Silver
Lab-Created Alexandrite Mini Star Pendant in 10K Gold 
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