Are Black Diamonds Worth your Purchase?

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Are Black Diamonds Worth your Purchase?
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• When you think of diamond, what always comes to
  our mind is the sparkling, white stone. However,
  are you aware that black diamonds are also
  available? You may be thinking of buying a
  diamond engagement ring or black diamonds for
  anniversary so read on to get helpful pointers.
• Black Diamonds Real or Not
• As with white diamonds, black diamonds are
  actually real although not as common. But you
  need to know that colors of some diamonds are
  artificially modified to black. Black diamonds
  also exist naturally.

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• Formation of Natural Black Diamonds
• Natural black diamonds or carbonado can be found
  in Africa and Brazil. While the chemical
  composition of black diamonds is similar with
  white diamonds, they have different crystal
  structure resulting in differing color. Some
  hypothesis say that the formation of black
  diamonds take place within the earth under high
  pressure while others note that they came from an
  asteriod which fell into the plant about 2
  million years ago.

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• Treated Black Diamonds
• Black diamonds made in laboratories are treated
  with white diamonds through radiation or heat.
  This results in the change of the stones color.
  Treated black diamonds occurs naturally and are
  rare. You must know that if you are getting a
  black diamond, you may end up with a normal
  diamond which has been darkened. So if you are
  planning to shop black diamonds rings, make sure
  that you get the real stone.