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British Dictionary definitions for rough diamond

rough diamond

noun
  1. an unpolished diamond
  2. an intrinsically trustworthy or good person with uncouth manners or dress
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for rough diamond

Historical Examples

  • Just a rough-diamond sort of chap, but fairly well educated.

    The Call of the Canyon

    Zane Grey