Category: Rough

Iran War Disrupts Diamond Trade in Dubai, Israel

Koin, TAGS postpone rough tenders in Emirati city.

De Beers Increases Prices of Large Diamonds

Move reflects intense shortage of 5-carat-plus rough at February sight.

De Beers Appears to Cut Prices, Shifts to More Opaque Invoices

Sightholders say new system makes rough less commoditized.

De Beers Announces 2026 Sight Dates

Miner will hold 10 sales during the year.

De Beers Tweaks Sight Boxes to Support Small Rough

Miner moves 2-carat goods out of beneficiation ranges.

Why De Beers Is Keeping Rough Prices Steady

Dealers believe Anglo American’s sale process is dictating policy.

De Beers Extends Sightholder Contract by Six Months

Miner cites “challenging environment” for diamond industry.

Video Podcast: The Man Who Transformed the Rough Market

Adam Schulman of Koin International extols the virtues of the tender system.

GIA Examines Rare 2,488ct. Rough Diamond 

Recovered in August 2024 from Lucara’s Karowe mine in Botswana, it is the second-largest ever found.

De Beers’ Latest Sight Brings Diamond Crisis into Focus 

Small rough is the biggest victim as tariffs compound the industry’s challenges.

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