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1000 Times Rarer Than Diamonds
Tanzanite is rare. In fact this beautiful blue violet gem is beyond rare. With just an estimated 30 years of supply remaining in the mine, as time passes Tanzanite becomes ever more precious.
Tanzanite is found in only one place on earth, deep in the foothills of Mount Kilimanjaro in Tanzania, East Africa. The entire area mined is only four square kilometres wide.
Intense geological research has shown Tanzanite's geology to be totally unique. The chance of it occurring outside the current production area (and its immediate vicinity) is less than a million to one.
So Tanzanite is rare in both a gemmological and geographic sense.