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Diamonds Current Events


$20,000 for a Canary Diamond Found in Arkansas?
April 17, 2014 | Weather Channel

Tana Clymer, a 14-year-old from Oklahoma City found a nice canary-colored diamond at the Crater of Diamonds State Park in Arkansas last fall. She recently sold it for $20,000.

Related: Diamond Mines in the United States.

Oceans Beneath the Earth?
March 18, 2014 | University of Alberta

“It might be the ugliest diamond you’ll ever see, but within this brown sliver of carbon is a gem of a find for a University of Alberta scientist working to unravel an ocean-sized mystery deep beneath the Earth.” Quoted from the University of Alberta press release.

The Bunder Diamond Project
March 13, 2014 | Rio Tinto Diamonds

The opening of new diamond mines are rare events anywhere in the world and Rio Tinto’s Bunder Project is the first new diamond mine to open in India in over 40 years.

Related: How Do Diamonds Form?

Default on the World Record Diamond?
March 6, 2014 | Jewish Business News

In late 2013 Sothbey’s sold a 60 carat fancy vivid pink diamond for a record price of $83 million – the highest price ever paid for a diamond of any kind. Now the buyer is unable to pay.

Related: How do diamonds form?

What is a Maar?
March 6, 2014 | Geology.com

Maars are the second most common volcanic feature on Earth.

The largest maars are found on the Seward Peninsula of Alaska. Do you know what they are and how they form?

Geology of Diamonds
February 18, 2014 | GeoscienceWorld.org

An interesting article on “Diamonds and the Geology of Mantle Carbon” that considers the various types of diamonds, their host rocks, inclusions, geographic distribution, environments of formation, age, trace element composition, textures, carbon/nitrogen isotopes, geobarometry, and lots more.

Tucson Gem and Mineral Show Interview
February 13, 2014 |

The Arizona Geological Survey just published a special episode of Arizona Mining Review. Lee Allison interviews Peter Megaw, Exhibits Chair of The 60th Annual Tucson Gem and Mineral Show which begins today. At least 40 other gem, mineral, fossil and jewelry shows have been occurring in Tucson for the past few weeks.

How to Tell Diamond from CZ
February 13, 2014 | Business Insider

A short video on Business Insider explains how jewelers can distinguish diamonds from cubic zirconia – CZ has much higher specific gravity and dispersion.

Peridotite
February 13, 2014 | Geology.com

Peridotite is a host rock of chromite, a source rock of diamonds, a potential sink for atmospheric carbon dioxide and the rock that makes up much of Earth’s mantle. Did you realize it was so important?

Related: Misconception: Diamonds Don’t Form From Coal

Popular for January 2013
February 2, 2014 | Geology.com

The Polar Vortex

Hot Rock Under the Atlas Mountains

Big Rare Earth Find in North Korea?

Horizontal Well Density in the Utica Shale of Ohio

Big Blue Diamond Found in South Africa

Ice Quake in Wisconsin?

Wow! The Best Snowflake Photos

Why Was It So Cold Last Week?

Diamonds in the Afterlife?
February 2, 2014 | National Public Radio

A few companies are producing “memorial diamonds” from the remains of cremated humans. For a few thousand dollars you can have a 1/4 carat (about 4 mm) diamond produced after your death for your heirs.

Big Blue Diamond Found in South Africa
January 23, 2014 | Reuters

A blue diamond about the size of an acorn and weighing 29.6 carats has been discovered in South Africa by Petra Diamonds.

The Smithsonian Gem and Mineral Collection
November 24, 2013 | Gemological Institute of America

The Gemological Institute of America has an article with five videos and a photo gallery that gives you a “behind the scenes” look at the Smithsonian Gem and Mineral Collection.

Fancy Vivid Pink Diamond Sells for $83 Million
November 19, 2013 | Bloomberg

A fancy vivid pink diamond weighing 59.60 carats was sold last week in Geneva for $83 million. That is the highest price ever paid for any gemstone at auction.

Related: How do diamonds form?

Most Viewed News in October
November 1, 2013 | Geology.com

Egypt Fears a Dam on the Nile in Ethiopia

235 Carat Diamond Found in Siberia

Status of Recent Geoscience Graduates

Nice Yellow Diamond Found in Arkansas

What Caused the Sudden Explosion of Animal Life 520MYA?

Walking Away from One of the World’s Largest Gold Discoveries?

Shell Walks Away from Oil Shale

Granitizers vs Magmatists

Nice Yellow Diamond Found in Arkansas
October 22, 2013 | Yahoo News

A 14-year-old girl from Oklahoma City has unearthed a 3.85-carat diamond at Arkansas’ Crater of Diamonds State Park.

Related: United States Gemstones

Converting Methane into Diamonds?
October 15, 2013 | National Geographic

Intense temperature, pressure and lightning storms on Saturn and Jupiter may be able to convert atmospheric methane into diamonds – producing a rain of diamonds on those planets.

235 Carat Diamond Found in Siberia
October 10, 2013 | RIA Novosti

Alrosa, the state-controlled diamond mining company of Russia, reports that they have found a 235 carat gem-quality diamond at their Yakutia mine in Siberia. The stone is valued at $1.5 to $2 million US.

Related: Popigai: The World’s Largest Diamond Deposit?

Fluorescence in Diamond
October 2, 2013 | Gemological Institute of America

The Gemological Institute of America has a new article titled “Fluorescence Produced by Optical Defects in Diamond“.

Diamonds from Brazil?
September 25, 2013 | Gemological Institute of America

Few people think of Brazil as a source of diamonds, but in the 1700s the country was the world’s leading supplier of gem-quality diamonds. Production continues there today with about 25,000 carats produced per year.

Related: The only producing diamond mine in the USA.

Popular for August 2013
September 3, 2013 | Geology.com

40 Maps that Explain the World

A Spanish Fort in the Appalachians in 1567?

12-Year-Old Finds a 5-Carat Diamond in Arkansas

Sinkhole in Western Kansas

Rare Eruption of Steamboat Geyser

Origin of the Antarctica Ice Sheet?

Frozen Landslides in Alaska

Solar Magnetic Field is about to Flip?

Flash Flooding Near Page, Arizona

Peridotite

12-Year-Old Finds a 5-Carat Diamond in Arkansas
August 15, 2013 | New York Daily News

A 12-year-old from North Carolina walked into the Crater of Diamonds prospecting area and in about ten minutes found a five-carat diamond.

Related: Crater of Diamonds

Popular Stories for July 15 to July 31
August 3, 2013 | Geology.com

Sinkhole Photos – Wow!

Debris Flow in Southern Utah

The Strangest Volcanic Landscape

Thousands of Volcanoes in Arizona?

An Embryonic Subduction Zone in the Atlantic?

The Geologist Who Discovered Canadian Diamonds

Missing-Mantle Mystery

Top Diamond Producers

The Geologist Who Discovered Canadian Diamonds
July 28, 2013 | Wired Magazine

An article in Wired Magazine (2008) has the interesting story about Chuck Fipke and his role in discovering the Lac de Gras diamond deposit in Northwest Territories, Canada.

Related: Diamond Mines in Canada

Top Diamond Producers
July 18, 2013 | Geology.com

Botswana, Russia and Canada retained their positions as the top three gem quality diamond producers for 2012 according to production estimates from the United States Geological Survey.

Related: Diamond Mines in Canada

A New Diamond Production Leader?
June 27, 2013 | Botswana Diamond Manufacturers Association

Russia is currently the world’s second largest producer of gem-quality diamonds, after Botswana. Alrosa, Russia’s largest diamond producer, has plans to surpass the production of DeBeers, the world’s leading diamond-producing company, by 2018. Their success may help Russia become the world’s leading diamond producing nation.

“A seven-hour flight from Moscow to the small town of Mirny, followed by another two-hour helicopter ride brought me to one of the most remote regions on earth, where many of the world’s diamonds are mined, Alrosa’s Nyurba mine in the Republic of Yakutia.” Quoted from the Botswana Diamond Manufacturers Association press release.

United States Gemstones
June 11, 2013 | Geology.com

A diversity of gemstones are produced in the United States. However, the $11 million per year in domestic production is tiny compared to the $23.5 billion that are imported.

Geology.com and RockTumbler.com are
both GeoShops.com websites.
Fee Mining Sites
May 24, 2013 | RockTumbler.com

Lots of people enjoy going to fee mining sites where you can prospect inactive surface mines, mine tailings, soil, sediments or outcrops and keep any rocks, gems, minerals or fossils that you find. Examples include: Herkimer Diamond Mines where you can search for doubly-terminated quartz crystals, and Crater of Diamonds where you might be lucky enough to find a real diamond.

Colorless Diamond Price Record
May 21, 2013 | ABCNews

ABC News Australia has an article about the 101 carat colorless diamond that set a new price record by selling for $23.8 million.

Diamond Dust over Saskatoon
May 3, 2013 |

The Earth Science Picture of the Day for April 29th was “diamond dust” glowing from reflected natural light and city lights outside of Saskatoon, Saskatchewan, Canada.

Alrosa Diamond Prospects in Africa
April 11, 2013 | Russia and India Report

Russian state-controlled diamond producer, Alrosa, hopes to explore for new primary diamond deposits in Angola, Botswana and Zimbabwe.

How to Recognize Good Gemstone Faceting
March 5, 2013 | YouTube

This short video by John Dyer explains the characteristics of well-cut and poorly-cut faceted gemstones. Beautiful faceted stones are a combination of great mineralogy and great craftsmanship.

Botswana Trading Diamonds for Coal
March 5, 2013 | Mining Weekly

Botswana has been one of the world’s leaders in the production of gem-quality diamonds but production levels are not sustainable. To diversify their mineral industry the plan is to focus on coal.

Related: What countries produce gem-quality diamonds?

Diamond Exploration in Eastern North Dakota
January 7, 2013 | North Dakota Geological Survey

This fact sheet by the North Dakota Geological Survey describes the possibility of kimberlites in North Dakota and a 2010 exploration program conducted by Kennecott.

We are constantly looking for interesting items related to geology and general science. When we find something interesting we share it here. Bookmark this page and visit often. You can also receive our news for free by RSS feed or email. We publish updates three or four days per week.





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Canada diamond minesCanada Diamond Mines: Canada is the third largest producer of gem-quality diamonds in the world.
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OpalOpals: Gem quality opal is one of the most spectacular gemstones. A single stone can flash with every color of the spectrum.
NovaruptaMost Powerful Eruption of the 20th Century: People in Juneau heard the volcanic blast - over one hour after it occurred.


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