rough

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rough

(rŭf),
Not smooth; denoting the irregular, coarsely granular surface of a certain bacterial colony type.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
Rough diamond sales were 9.0 million carats (8.3 million carats on a consolidated basis)3 from three sales cycles compared with 10.0 million carats (9.4 million carats on a consolidated basis)3 from the same number of sales cycles in Q2 2018.
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.
Mr Rowley said total revenue decreased by 17 per cent to US$2.6 billion, and that rough diamond sales declined by 21 per cent to US$2.3 billion.
Bruce Cleaver, chief executive officer at De Beers Group, said: "While overall retail sentiment for diamond jewellery in the US remains solid, a more challenging environment in China and higher than normal polished diamond inventories in the midstream resulted in a cautious approach from rough diamond buyers during the fifth cycle of 2019."
"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.
Under an exclusive collaboration agreement with Sarine Technologies, a digital fingerprint of each rough diamond is created and uploaded to the Clara platform with a corresponding asking price.
Earlier this year, DMCC signed a strategic partnership with Stargems, specialised in the sourcing and supply of fine diamonds, to host a series of rough diamond tenders.
Miami, FL, June 27, 2018 --(PR.com)-- Certified Diamonds & Gemstones, Inc.'s (CDGI) recently concluded Quarterly June 2018 Premium Rough Diamond Tender illustrates and underscores the global reach of CDGI.
Dubai: Dubai Diamond Exchange (DDE) signed a partnership deal with Stargems, a company specialising in the sourcing and supply of diamonds, to host a series of rough diamond tenders in 2018.
Dubai Diamond Conference 2017 provides an opportunity for fostering relationships and building between the private and public sectors in rough diamond producing and purchasing countries.
"Lesedi la Rona", the world's largest gem-quality rough diamond discovered in more than 100 years, goes on display in London this week before it heads for the auction block where it is expected to fetch more than $70 million.