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Blue diamond
Blue Diamond Ready for Auction
March 5, 2010 | Reuters

A fancy vivid blue pear-shaped diamond, one of only twelve stones in the De Beers Millennium collection, is soon to go up for bidding. When Sotheby’s holds the auction in Hong Kong next month, the ring is expected to fetch a hefty sum.

Related stories.
Diamond
507-Carat Petra Diamond Sells at $35M
March 4, 2010 | Reuters

The Petra Cullinan Heritage diamond sold at auction for $35.3 million, which is the top price paid for an uncut stone to date. The 507-carat gem will be analyzed extensively – perhaps for months! – before a cut is chosen.

Related stories.
Diamond
507-Carat Diamond To Be Auctioned
February 24, 2010 | TimesLive.co.za

Petra Diamonds plans to sell a 507-carat uncut diamond from their Cullinan mine in an auction on Friday. It could sell for about $25 million.

Related stories.
Diamond Retailers Suffering
February 22, 2010 | The Dallas Morning News

Thousands of jewelry stores have closed over the past two years as the bad economy has slowed spending on luxury goods. An article in The Dallas Morning News explores the problems faced by some major diamond retailers.

Related stories.
Geochemistry and Botswana Kimberlite Discoveries
January 13, 2010 | The Association of Applied Geochemists

An article in a recent issue of Explore, the newsletter of The Association of Applied Geochemists, explains the role of geochemistry in locating diamond-bearing kimberlite deposits in Botswana.

Related stories.
Diamond
Video: The 4Cs of Diamonds
January 11, 2010 | Gemological Institute of America

Diamonds are graded using the 4Cs: color, clarity, cut, and carat weight. This video gives a brief overview of these qualities that should be taken into consideration when selecting a diamond.

Learn more about diamonds.

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West Virginia
Punch Jones Diamond
November 25, 2009 | The State Journal

One of the largest diamonds ever found in North America was found by William “Punch” Jones, a ten-year-old, who was pitching horseshoes with his father in Peterstown, West Virginia in 1928. It was named the “Punch Jones Diamond” after its finder.

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Zimbabwe and Kimberly Process Standards
November 2, 2009 | ZimOnline

The Kimberly Process is a set of standards that a diamond-producing country must meet to assure that the stones are produced legally and without human exploitation. Zimbabwe could be told to stop exporting diamonds until it complies with the KP standards.

Related stories.
Diamond
Cullinan Diamond Mine Yields a 507-Carat White Stone
September 29, 2009 | Telegraph.co.uk

One of the largest diamonds in history was discovered at the Cullinan Diamond Mine in South Africa. The 507-carat white stone is one of many spectacular gems from the Cullinan Mine.

Related: World Diamond Production Map

Related stories.
Diamonds in Wyoming and Colorado
September 17, 2009 | Wyoming Geological Survey

The Wyoming Geological Survey has a .pdf booklet titled: “Searching for Placer Diamonds” that you can download and read for free.

It was written by W. Dan Hausel and contains information about recognizing diamonds, prospecting for diamonds, references and a map of the Colorado-Wyoming Kimberlite Province.

Related stories.
Crater of Diamonds State Park
August 12, 2009 | CNN

CNN has an article about how six people found a fortune. One of the stories is about a person finding a 40.23 carat diamond at Crater of Diamonds State Park in Arkansas – the only diamond mine in the world where you can look for diamonds and keep what you find.

Related stories.
Video: Botswana Diamond Market
July 27, 2009 | CNN

Diamonds have lifted the economy of Botswana but the recent recession has cut demand by about 50%. Their response is an attempt to capture the diamond sorting, cutting and selling portions of the trade.

Related stories.
Diamonds Suggest Cosmic Impact
July 27, 2009 | University of Oregon, University of California, Santa Barbara

Lonsdaleite diamonds found on California’s Channel Islands are suggestive of a cosmic impact some 12,900 years ago. This impact is one of several theories on how some species became extinct at the end of the ice age.

Related stories.
Video: Do Diamonds Burn?
July 2, 2009 | The Open University

Diamonds are composed of carbon and many people wonder if diamonds can be burned. Here is a video from The Open University. It shows a diamond being heated with a torch then dropped into liquid oxygen where it burns to produce carbon dioxide gas.

Related stories.
United States Diamond Mine
June 26, 2009 | Geology.com

The only producing diamond mine in the United States is the Crater of Diamonds Mine near Murfreesboro, Arkansas. It is also the only diamond mine in the world where you can be the miner.

Related stories.
Sources of Bushveld Platinum and Diamonds
June 13, 2009 | National Science Foundation

Diamonds sometimes acquire trapped traces of platinum group elements such as platinum, palladium, rhodium, ruthenium, osmium and iridium when they are formed. “When these elements are encapsulated as mineral inclusions in diamonds, their unique isotopic ’signatures’ help geologists determine where the diamonds were formed and how old they are.” Quoted from the NSF release.

Related stories.
Synthetic Diamonds
June 11, 2009 | Carnegie Institution for Science

What would happen if large, nearly flawless diamonds could be grown at a rate of a millimeter per hour? That day might arrive soon. Diamonds then would have much wider use in industry – but what might happen to the gemstone market?

Related stories.
Satellite Image: Botswana Diamond Mine
June 11, 2009 | Earth Observatory

Earth Observatory published a satellite image of the Jwaneng Diamond Mine, located in south-central Botswana. It shows the deep concentric geometry of the mine, adjacent settling ponds and a nearby community where many of the miners live.

Related stories.
Diamond Trivia
June 10, 2009 | Geology.com

A collection of interesting facts about diamonds. If you know all of these you are a genuine diamond expert!

Related stories.
Diamond Production Map and Graphs
June 5, 2009 | Geology.com

Leadership positions in the gem-quality diamond production race are constantly changing as new discoveries are made and old mines are worked out. This article charts diamond production geographically and over time.

Related stories.
Diamond
Diamonds Used in Cancer Treatment
May 21, 2009 | Northwestern University

Researchers at Northwestern University have developed a new tool for cancer treatment. The tool can deliver nanodiamonds and drugs into a single cell.

Related stories.
Blue diamond
Blue Diamond Sets Record at $9.5 Million
May 13, 2009 | Reuters

A blue diamond of 7.03 carats was sold for $9.5 million – the highest per carat price ever paid for a gemstone at auction. The stone was produced from the Cullinan mine in South Africa.

Related stories.
Blue diamond
Blue Diamond Up for Auction
May 6, 2009 | BBC News

A seven-carat blue diamond mined from South Africa will soon be up for auction in Geneva, and is expected to sell at a record price. Its unusual color is caused by the element boron.

Related stories.
Botswana
Botswana Reduces Diamond Production
April 20, 2009 | BBC News

Botswana, which is the world’s leading source of diamonds, is to reduce production by more than 50 percent. Lessened demand is cited as the reason.

Related stories.
Kazanjian Red Diamond Video
April 11, 2009 | CNN

One of just three in the world, this red diamond was a big hit with kids visiting the Hixon Gem Vault in Los Angeles. Stolen during World War II it is now on public display.

Related stories.
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