Diamond miner De Beers reported that its rough diamond sales (Global Sightholder Sales and Auction Sales) for the sixth sales cycle – or sight – of this year was a provisional $520 million.
The firm also confirmed a final total for the fifth sight of $564 million.
Bruce Cleaver, CEO, De Beers Group, said: “This is an encouraging sales performance for this point in the year, supported by positive sentiment from our customers.
"We maintain a cautious outlook for the remainder of 2016,” he added.
After a powerful start to the year, with almost $2 billion of sales in the first quarter alone, De Beers' sales have been declining largely due to seasonal reasons.