| Subcribe via RSS

Rising Demand for Diamonds

January 4th, 2012 | Comments Off | Posted in Geology.com

Middle class populations are growing rapidly in China and India . This is producing a sharp increase in the demand for diamonds in both countries.

More »

Tags: , , , , , , , , , , , , ,

Urban Gold Prospecting

December 8th, 2011 | Comments Off | Posted in Geology.com

This video shows how Raffi Stepanian finds gold and diamonds in the cracks of Manhattan sidewalks. I don’t know if he really making 300 bucks per day but his techniques are interesting!

More »

Tags: , , , , , , , , , ,

Anglo American Buying De Beers

November 7th, 2011 | Comments Off | Posted in Geology.com

Anglo American has negotiated a deal that will give them 85% of the outstanding stock of De Beers, a company that has dominated the diamond industry for about 100 years.

More »

Tags: , , , , , , , , , , , , ,

Diamond as an Ultradurable Component in Micromachines

October 5th, 2011 | Comments Off | Posted in Geology.com

“ Diamond may be the ideal substance for MEMS devices,” says NIST’s Craig McGray. “It can withstand extreme conditions, plus it’s able to vibrate at the very high frequencies that new consumer electronics demand. But it’s very hard, of course, and there hasn’t been a way to engineer it very precisely at small scales. We think our method can accomplish that.” Quoted from the NIST press release.

More »

Tags: , , , , , , , ,

Concave Facets?

September 12th, 2011 | Comments Off | Posted in Geology.com

Gemstones have been faceted for hundreds of years and up until about 20 years ago the facets have been perfectly flat surfaces. New equipment allows facets to be cut with a concave shape that gathers light from a wider range of angles and broadly diverges it within the stone. The result is a bright and interesting gem. The down side is that the weight of the stone is reduced.

More »

Tags: , , , , , , , , , , ,

Zimbabwe to Export Marange Diamonds

June 26th, 2011 | Comments Off | Posted in Geology.com

The Kimberly Process approved the export of diamonds produced in Zimbabwe’s Marange diamond fields over strong objections raised by representatives from the United States, Canada and European Union. Related: What is the Kimberly Process?

More »

Tags: , , , , , , , ,

Rough Diamond Prices Rose 35% in 2010

January 30th, 2011 | Comments Off | Posted in Geology.com

When the recession started many diamond miners cut back on their development activities and retailers left their inventories sell down. Then in 2010, retailers and the public started buying, demand in India and China picked up, and that caused rough diamonds to be in short supply.

More »

Tags: , , , , , , , , , , , , , ,

Blood Diamonds Still Smuggled Out of Ivory Coast

January 26th, 2011 | Comments Off | Posted in Geology.com

The United Nations has banned Ivory Coast from exporting diamonds but the stones are still being smuggled out. Trading in blood diamonds has been significantly reduced in the past twenty years as a result of Kimberly Process Certification and Ivory Coast is the only country remaining with an export ban.

More »

Tags: , , , , , , ,

The Most Expensive Gemstone: Pink Diamond Sells for $46 Million

November 26th, 2010 | Comments Off | Posted in Geology.com

A 24.78 carat “fancy intense pink” diamond named “The Graff Pink” was sold at auction in Geneva for $46 million. This is the highest price ever paid for a gemstone at auction.

More »

Tags: , , , , , , , , , ,

Diamond Making Machines

October 10th, 2010 | Comments Off | Posted in Geology.com

A Sixty-Minutes interview with entrepreneurs from Gemesis Diamonds and Apollo Diamonds, companies that produce synthetic diamonds. Also a walk through their labs where diamonds are grown in just a few days. The president of the International Gemological Institute compares these creations with natural stones and demonstrates software that can distinguish between natural and synthetic stones.

More »

Tags: , , , , , , , , , , , , ,