Alrosa will test a pioneering technology that will increase productivity and speed up the extraction of diamonds, a product it intends to sell to the global industry should it prove successful. The ...

Sales and earnings at Lucara Diamond Corp. rose in the second quarter as the miner sold a 1,094-carat rough into its supply deal with HB Antwerp for an initial value of $12 million. Revenue from the ...

Petra Diamonds’ sales fell 33% for the full fiscal year as the miner offered fewer goods and prices for rough fell in the weak market.