Petra finds 20.08-carat blue diamond at flagship Cullinan mine

While most miners have managed to straighten the balance sheets, they have not began preparing to deal with a new looming risk —their ability to access workers with the skills needed in an upswing.

Even if the US president-elect's massive infrastructure build-out plan makes it through Congress intact.

Lucara Diamond Corp. is pleased to announce excellent results from its second Exceptional Stone Tender of 2016.

The world’s top diamond producer by value said results were in line with expected seasonal demand patterns.

Rough gems sales totalled $430.8 million in October, slightly less than the $435 million fetched in September.

The move comes on the heels of a similar decision by De Beers Canada, which moved its headquarters from Toronto to Calgary in July.

The stock jumped after it announced it had fetched $8.3 million for 1,864 carats of rough diamonds from its Lulo project.

They are part of a newly created set of drop earrings to go under Christie's hammer in Geneva on Nov. 15.

Graff plans to showcase it around the world before setting it as a jewel.