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The diamond is rare because many people have them or because the diamond is very expensive and most of all the diamonds found are made into jewelry.

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Diamond is rare because it is a mineral developed in the earth -- deep within its mantle -- and which is only available to humans near volcanic pipes that bring the stones to the surface. The right combination of carbon, extreme pressure and intense heat required to form diamonds is not common on the earth.

In fact, 75% of diamonds are used for industrial applications, and only 25% of them are gem-quality.

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14y ago

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