Rough Prices Rise at Grib Antwerp Auction

Grib Diamonds noted solid market demand at its most recent rough sale in Antwerp, with overall prices increasing 5% to 7% compared to the previous auction.

The Belgian company, which sells production from AGD Diamonds’ Grib mine in Russia, garnered approximately $45 million from its September 23 sale of around 550,000 carats, Antony Dear, Grib’s head of sales, said last week.

Larger yellow diamonds and goods below 0.75 carats yielded the strongest prices, he added.

However, gem-quality white diamonds weighing 2 carats and above saw a sharp decrease of between high single digits and low double digits, he explained.

The company will hold its next rough auction in mid-October, it added. Diamonds.net