value  why


Question by  Sara (14)

Why is tanzanite unheated worth more?


Answer by  Labowner7672 (64)

Most tanzanite is ugly and brown. Heating changes the color and hides imperfections to the naked eye. Unheated tanzanite is worth more because it doesn't need to be artificially improved.


Answer by  worker3950 (109)

It is extremely rare to find tanzanite without heating so, naturally, unheated tanzanite is worth a considerably greater value than heated tanzanite.

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