Diamonds

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Across
  1. 4. element once under pressure becomes a diamond
  2. 5. diamonds encouraged this during WW2
  3. 6. how diamonds were presented in the 1930's
  4. 7. diamonds were symbolized of what in America
Down
  1. 1. volcanic rock that holds the diamonds once it reaches the surface
  2. 2. Capital City of diamonds
  3. 3. diamonds are found in...
  4. 5. lies between Earth's crust and super heated core