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Answer:

The diamond is more than a billion years old.

Diamonds are the hardest natural substance on earth.

Diamonds are made of only one element: carbon.

Diamonds come in every color.  

Scientists have discovered a planet that they believe is composed mostly of carbon, and is one-third pure diamond.

Answer:they're shiny, having the ability to reflect light in different ways, an organic disco ball if you will.

Explanation:

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