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  1. Documentary: COAL MINING IN INDIA | BLACK DIAMOND | DIRTY JOB | MINERS LIFE | REVEALED

    Documentary: COAL MINING IN INDIA | BLACK DIAMOND | DIRTY JOB | MINERS LIFE | REVEALED

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  2. How Diamonds are Grown in a Lab - Synthetic Better than Real Thing

    How Diamonds are Grown in a Lab - Synthetic Better than Real Thing

    227
  3. The rough diamond

    The rough diamond

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