Sentence examples for mined diamonds from inspiring English sources

Despite this, one Stanford University graduate was able to carry out research comparing the energy intensity of mined diamonds at BHP Billiton's Ekati mine in Canada against the lab-created diamonds produced by Gemesis in the US.

He now buys arms with illegally mined diamonds.

Her engagement ring inspired a commitment to provide ethically mined diamonds.

The National Diamond Mining Company (Diminco) also mined diamonds until 1995.

Only 2% of the global production of mined diamonds qualify for this rating.

Taylor denies using illegally mined diamonds to secure weapons for Sierra Leone's RUF rebels during the 1991-2001 civil war.

Rebel-mined diamonds, though, can still find their way out of Africa.

One way to keep rebel-mined diamonds off the world market would be to impose a diamond embargo on African countries known to be exporting smuggled stones.

"The fundamental issue is verification," said Carroll Bogert, a spokeswoman in the New York for the group, which has closely monitored the trade in rebel-mined diamonds.

While De Beers's move will further reduce the chances that rebel-mined diamonds will trickle into American jewelry stores, Ms. Gordon said there remained a large network of dealers who are not beholden to De Beers.

He said the best recent estimate is that in return for arms and other supplies 60percentt of rebel-mined diamonds were moving from Liberia and 40percentt from Burkina Faso.