rough diamond

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rough diamond

n
1. (Jewellery) an unpolished diamond
2. an intrinsically trustworthy or good person with uncouth manners or dress
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Translations
bamse
hrjúfur en ágætur inn viî beiniî
nebrúsený diamant
dürüst fakat kaba kimse

rough

(raf) adjective
1. not smooth. Her skin felt rough.
2. uneven. a rough path.
3. harsh; unpleasant. a rough voice; She's had a rough time since her husband died.
4. noisy and violent. rough behaviour.
5. stormy. The sea was rough; rough weather.
6. not complete or exact; approximate. a rough drawing; a rough idea/estimate.
noun
1. a violent bully. a gang of roughs.
2. uneven or uncultivated ground on a golf course. I lost my ball in the rough.
ˈroughly adverb
ˈroughness noun
ˈroughage (-fidʒ) noun
substances in food, eg bran or fibre, which help digestion.
ˈroughen verb
to make or become rough. The sea roughened as the wind rose.
rough diamond
a person of fine character but rough manners.
ˌrough-and-ˈready adjective
1. not carefully made or finished, but good enough. a rough-and-ready meal.
2. (of people) friendly enough but without politeness etc.
ˌrough-and-ˈtumble noun
friendly fighting between children etc.
rough it
to live for a period of time without the comforts or conveniences of modern life. They roughed it in the jungles for two months.
rough out
to draw or explain roughly. I roughed out a diagram; He roughed out his plan.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in classic literature ?
By what power he drew after him the hearts of the roughest, and the Tail Twisters counted in their ranks some rough diamonds indeed, was a mystery to both skipper and C.
"He is a very rough diamond," Da Souza said apologetically.
she was cutting for God the rough diamond rejected by man.
He's not a rough diamond - a pearl-containing oyster of a rustic: he's a fierce, pitiless, wolfish man.
We're involved in almost every stage of the diamond pipeline: exploration, mining, sorting, valuing and selling rough diamonds; marketing and selling polished diamonds and jewellery; and developing synthetic diamonds for industrial use.
ALROSA's total rough and polished diamond sales in January-July 2019 amounted to $1,981.8 million, including $1,948.7 of rough diamonds and $33.1 million of polished diamonds sales.
ENPNewswire-August 14, 2019--ALROSA sells large rough diamonds in the US for $7 mln
(Alliance News) - Mining firm Anglo American PLC said Tuesday its De Beers rough diamonds sales in its fifth sales cycle of 2019 dropped on a year-on-year basis due to higher inventories and a tough sales environment in China.
"Alrosa completely confirms information from Russia's FSB (security service) about the interception of an extensive scheme to steal rough diamonds in the company's United Selling Organization," the company said in a statement.  
"It's nice when the wee rough diamonds turn into a gem.
Clara uses proprietary analytics, with the latest cloud and blockchain technologies, to sell rough diamonds individually, based on polished characteristics and demand, transforming the sales process, driving efficiencies and unlocking value for diamond producers and manufacturers alike.
"Dubai is the third biggest diamond trading hub in the world with $16.7 billion of rough diamonds traded in 2017, and will continue to play a central role for the diamond trade," Ahmed Bin Sulayem added.