Monday, 12 April 2010


Rich blue violet, tanzanite gained its popularity when New York jeweler, Louis Comfort Tiffany named named it after its origin, Merelani Mine in Tanzania.

See Terri Hatcher flaunting her Tanzanite ring.
Magnificent Untreated Tanzanite Crystal photo image
And note how charming the color of this Tanzanite rough with no heat treatment. via
Heat treatment reduces the pleochroism of the gem.
The magical part of it: Rotate it in different directions, the single stone will exhibit three outstanding changes of color, from reddish purple to blue to deep purple. When it was first mined, it cost about $20/carat. By 1984 clean gems wholesaled at better than $1000 a carat, an indication of increasing interest in a gem already in short supply. In 1978 a massive cholera epidemic struck northern Tanzania and interrupted production of rubies, garnets, sapphires, chrome tourmaline, chrysoprase, and tanzanite. Today, prices of fine quality tanzanite can compete with sapphires. (

frequently paired with diamonds, I think this is possibly the best way to bring out the beauty of this outstanding stone that displays different colors at different angles.
If you caught the bug like me and want to learn how about tanzanites, Merelani Issue of Mineralogical Record
Check this out. By Wendell E. Wilson, John M. Saul, Vincent Pardieu & Richard Hughes (2009) I first met Mr. Richard Hughes 2 years back in Thailand. He is an incredibly knowledgeable gemologist who wrote the bible on Ruby-Sapphire.

I am planning to incorporate this precious gem into my collection soon. Stay tune!

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