Alexandrite was named after Czar Alexander II.  It was discovered in the Ural Mountains in 1830.

Specific Gravity:  3.68 - 3.78
Hardness:  8.50

Alexandrite's color varies from green in the daylight, to redish-purple in twilight or under artificial light.

The quality of color change coupled along with extreme scarcity, makes alexandrite a very costly gem.  Very few people have ever seen a real alexandrite, some speculate only one person out of every 100,000! Natural stones over five carats are almost unknown. Alexandrite is synthesized, but still can cost over $300 to $500 per carat. 

Alexandrite is mined in Sri Lanka, Zimbabwe, and Brazil.

Alexandrite is not a zodiac stone but it is the 55th anniversary stone (Matlins & Bonanno, 1998, p. 104).

This information was primarily taken from

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This page was created December 6, 2000. copyright 2000 © Carmen Skaggs. All rights reserved.