rough

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rough

(rŭf),
Not smooth; denoting the irregular, coarsely granular surface of a certain bacterial colony type.
References in periodicals archive ?
Summary: Deal is expected to boost the flow of rough diamonds through Dubai
The Dubai Multi Commodities Centre (DMCC) facilitated the acquisition of the rights for the 404-carat rough diamond to de Grisogono, and showcased the diamond at a special event in May last year.
Commenting on the occasion, Vince Cook, CEO of NBF said: "Given the key strength that Dubai has as an established center for the rough diamond trade, it is crucial that NBF remains an integral part of this journey.
A model shows off the 1109 carat "Lesedi La Rona", the largest gem quality rough diamond discovered in over 100 years during a sale preview at Sotheby's auction house in London
It also provides information about Botswana's diamond reserves, historic and forecast data on rough diamond production and production by selected mines, the competitive landscape and active and development diamond projects.
Although inventory levels are not reported, anecdotal evidence suggests there is also overstocking of polished diamonds, which means rough diamond producers may have to cut prices further to revive purchasing activity.
Gain an understanding of the precious metals and diamond mining industry in Zimbabwe, PGM reserves, historic and forecast data on platinum and rough diamond production, demand drivers, active, exploration and development precious metals (platinum) and diamond projects, the competitive landscape and the country's fiscal regime.
India's long-held position as the world's top diamond polisher is being challenged by soaring output from China compelling it to seek help from ally and top rough diamond supplier Russia to defend its market share.
Peter Meeus, Chairman, Dubai Diamond Exchange, said, "As the key distribution and trading partner for Debswana, the DDE has been engaged in direct talks with De Beers and sight-holders to ensure that we are providing the services and products required to absorb the $6 billion of rough diamond sales that has now shifted from London to Gaborone.
Rough diamond prices rose around 25% last year according to International Diamond Consultants Ltd, whilst polished stones' prices remained largely unchanged.
Alrosa Company Limited (Alrosa), a Russia-based diamond company, has reported USD150m worth of rough diamond sales in the first 10 days of August 2009.
The firm said trading in the rough diamond market was "extraordinarily difficult" in the first three months of the year, but demand price and sales all began to pick up in the second quarter.