Here Are the Seven Most Valuable Gems in the World

Tanzanite

Tanzanite is a rare gem that was first found around the base of Mount Kilimanjaro in northern Tanzania in 1967. Its name is derived from its place of discovery. Tanzanite has a blue-ish violet color. Supplies of Tanzanite will run out in 30 years or so. It’s worth $1,200 per carat.

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