Government says diamond trade is no longer a threat to fuel instability as civil war has ended and the Kimberley Process has backed the lifting of the embargo.

SNL Metals & Mining reveals that while the minerals exploration sector recorded lower drilling activity, funds raised by the mining sector saw a near three-fold increase to $6.2 billion.

And why did Forbes rank Geology as the 7th most valuable college major?

Paul Zimnisky responds to frequently asked questions about investing in diamonds.

As a side benefit, the use of diamonds makes contact lenses more durable.

Rock was sold to US luxury jeweller Cora International NY through South Africa-based Golden Yellow Diamonds.

"We are not happy," said CEO Mark Cutifani.

The miner has been among the most aggressive cost-cutters and plans to find a further $3 billion in savings this year.