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Synonyms

rough diamond

British  

noun

  1. an unpolished diamond

  2. an intrinsically trustworthy or good person with uncouth manners or dress

"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

Example Sentences

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It said "rough diamond trading conditions are expected to remain challenging in the near-term" with production decreasing and several producers closing mines.

From Barron's ● Jul. 13, 2026

Becker signalled he would focus on the mental side of the game and described Rune as “a rough diamond that needs polishing.”

From Washington Times ● Oct. 19, 2023

But this rough diamond in the crown of Seattle parks is worth the effort — no gas lighting required.

From Seattle Times ● Jul. 20, 2023

The largest rough diamond of any colour ever recorded is the Cullinan diamond, found in South Africa in 1905.

From BBC ● Jul. 27, 2022

Poor Freeman! he was rather a rough diamond in some respects, but one of the best and most faithful of servants.

From Fifty-One Years of Victorian Life by Margaret Elizabeth Leigh Child-Villiers

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