Southern Jewelry News
  • Featured
    • All
    • Featured
    • Featured Retailers
    • Retailer Roundtable
    • Sponsored Content
    • Supplier Spotlight

    Tiffany Stevens: JVC has industry’s back

    Perry’s Emporium: Sailing for success

    Perry’s Emporium: Sailing for success

    From nursing to jewelry, a Wisconsin retailer’s career conversion

    Atlanta Jewelry Show, featuring RJO, kicks off 2021 with safe, successful event

  • Latest News
    • All
    • COVID-19
    • Furry Friends
    • Industry Awards
    • Industry Events
    • On The Move
    • Other News
    • Tradeshow News
    • What's New
    Jewelry store sales and management training video from Jimmy DeGroot: Using “Mirroring” to connect with your customers – it really works!

    Jewelry store sales and management training video from Jimmy DeGroot: Using “Mirroring” to connect with your customers – it really works!

    New study from Jewelers Mutual® Group reveals engagement ring is one of the most expensive items owned

    Third annual Bench Jewelers Laser & Technology Conference coming this fall

    Third annual Bench Jewelers Laser & Technology Conference coming this fall

    March retail sales see strong rebound amid increased vaccination and government stimulus

  • Columnists

    I DO…. want to grow my Bridal Business!

    Top 10 Digital Marketing Tactics that can help jewelry stores in 2021

    You are the “King or Queen” of your business – Now Act Like It!

    The Retailer’s Perspective:It’s April Fool’s Day again…and again…and again

    The Retailer’s Perspective:It’s April Fool’s Day again…and again…and again

    Applied Marketing 101: The incipient end of the Airbnb Effect

    The Story Behind the Stone: Auction Action

    The Story Behind the Stone: Auction Action

    Celebrate Mom!

    5+ Digital Marketing Hacks for Jewelry Retailers on Mother’s Day

  • Classifieds
  • Subscriptions
    • Newsletter Signup
    • Print Subscription
No Result
View All Result
Southern Jewelry News
  • Featured
    • All
    • Featured
    • Featured Retailers
    • Retailer Roundtable
    • Sponsored Content
    • Supplier Spotlight

    Tiffany Stevens: JVC has industry’s back

    Perry’s Emporium: Sailing for success

    Perry’s Emporium: Sailing for success

    From nursing to jewelry, a Wisconsin retailer’s career conversion

    Atlanta Jewelry Show, featuring RJO, kicks off 2021 with safe, successful event

  • Latest News
    • All
    • COVID-19
    • Furry Friends
    • Industry Awards
    • Industry Events
    • On The Move
    • Other News
    • Tradeshow News
    • What's New
    Jewelry store sales and management training video from Jimmy DeGroot: Using “Mirroring” to connect with your customers – it really works!

    Jewelry store sales and management training video from Jimmy DeGroot: Using “Mirroring” to connect with your customers – it really works!

    New study from Jewelers Mutual® Group reveals engagement ring is one of the most expensive items owned

    Third annual Bench Jewelers Laser & Technology Conference coming this fall

    Third annual Bench Jewelers Laser & Technology Conference coming this fall

    March retail sales see strong rebound amid increased vaccination and government stimulus

  • Columnists

    I DO…. want to grow my Bridal Business!

    Top 10 Digital Marketing Tactics that can help jewelry stores in 2021

    You are the “King or Queen” of your business – Now Act Like It!

    The Retailer’s Perspective:It’s April Fool’s Day again…and again…and again

    The Retailer’s Perspective:It’s April Fool’s Day again…and again…and again

    Applied Marketing 101: The incipient end of the Airbnb Effect

    The Story Behind the Stone: Auction Action

    The Story Behind the Stone: Auction Action

    Celebrate Mom!

    5+ Digital Marketing Hacks for Jewelry Retailers on Mother’s Day

  • Classifieds
  • Subscriptions
    • Newsletter Signup
    • Print Subscription
No Result
View All Result
Southern Jewelry News
No Result
View All Result
Home Latest News Other News

Study of rare diamonds unlocks more of Earth’s secrets

New insights from GIA researchers

April 5, 2021
Share on FacebookShare on Twitter

(CARLSBAD, Calif.) – Scientists at GIA (Gemological Institute of America) continue to delve deep into earth’s geologic history, using diamonds’ distinctive characteristics to go – virtually – where no scientist has ever gone. In two recent scientific papers, GIA researchers and their colleagues at other leading research institutions share their latest discoveries based on information gleaned from extremely rare and pure diamonds from very deep within the earth.

Examples of exceptional rough type IIa diamonds from the Letseng mine, Lesotho. These are the same kinds of diamonds as the ones examined in both of the studies mentioned. The largest stone is 91.07 carats. (Photo by Robert Weldon; © GIA; courtesy of Gem Diamonds Ltd.)

“Our unparalleled access to millions of diamonds each year, long-standing relationships with major research institutions and mission-driven dedication to sharing everything we learn make GIA uniquely able to help expand understanding of the fundamental forces that shape the planet,” said Tom Moses, executive vice president and chief laboratory and research officer. “Those same unique advantages support our continued innovations in diamond grading, including identification of treatments and automated diamond grading.”

A paper published this week in scientific journal Science Advances reveals that a hydrous rock called serpentinite, which forms in cracks in the ocean floor, is a critical ingredient in some of the largest and rarest diamonds that form at extreme depths. The research, co-led by Evan Smith from GIA and Peng Ni from the Carnegie Institution for Science, discovered an isotopic “fingerprint” of iron trapped in type IIa gem diamonds from Letseng, Lesotho. It is well understood that oceanic tectonic plates slide down into the mantle over millions of years, a process called subduction. This study reveals that some sinking ocean plates act like a giant conveyor belt capable of transporting water, carbon and other surface materials down into the interior of our planet – to depths of 360 to 750 km where these “super-deep” diamonds form. Understanding this deep recycling pathway is critical to understanding the evolution of the oceans and atmosphere.

In the most recent edition of American Mineralogist, Evan Smith and Wuyi Wang and their co-authors from the Department of Geosciences at the University of Padova, Italy, expand on their 2018 discovery of crowningshieldite, a new mineral named in honor of pioneering GIA researcher G. Robert Crowningshield. The studied example of crowningshieldite formed as part of a multi-component inclusion trapped in a diamond. It reinforces how unique diamonds are and adds to the growing list of exotic materials discovered within them.

Dr. Evan Smith’s research at GIA on very rare, large, pure diamonds that form between 360 and 750 kilometers (220 and 460 miles) deep in the earth was published in the scientific journals Science in December 2016 and in Nature in August 2018.

For more on the related findings of GIA researchers, visit:

  • Large, Rare Diamonds Offer Window into Inner Workings of Earth’s Mantle
    GIA press release Dec 2016
  • Large, Rare Diamonds Reveal the Inner Workings of Earth’s Mantle
    GIA article Dec 2016
  • The Unexpected Origins of Big Diamonds
    GIA article Sept 2017
  • Researchers Discover the Unique Origin of Blue Diamonds
    GIA press release – Aug 2018
  • Where Do Blue Diamonds Come From?
    Evan Smith, article Aug 2018

Visit GIA online at GIA.edu.

Related Posts

Jewelry store sales and management training video from Jimmy DeGroot: Using “Mirroring” to connect with your customers – it really works!

Jewelry store sales and management training video from Jimmy DeGroot: Using “Mirroring” to connect with your customers – it really works!

April 19, 2021

New study from Jewelers Mutual® Group reveals engagement ring is one of the most expensive items owned

April 19, 2021

March retail sales see strong rebound amid increased vaccination and government stimulus

April 19, 2021
$2 million in 2021 GIA Scholarships available

GIA wins trademark infringement suit

April 14, 2021

Latest News

Columnists

I DO…. want to grow my Bridal Business!

April 19, 2021
Columnists

Top 10 Digital Marketing Tactics that can help jewelry stores in 2021

April 19, 2021
Other News

Jewelry store sales and management training video from Jimmy DeGroot: Using “Mirroring” to connect with your customers – it really works!

April 19, 2021

Other News

New study from Jewelers Mutual® Group reveals engagement ring is one of the most expensive items owned

Third annual Bench Jewelers Laser & Technology Conference coming this fall

March retail sales see strong rebound amid increased vaccination and government stimulus

Enhance customer experience to gain loyal, repeat clients

Kansas jeweler featured at international Main Street Conference

GIA wins trademark infringement suit

Southern Jewelry News

© 2020 Southern Jewelry News.

Additional Information

  • About
  • 2021 Trade Shows
  • Media Kit
  • Contact

Get Social with Us

No Result
View All Result
  • Featured Articles
    • Featured
    • Featured Retailers
    • Retailer Roundtable
    • Supplier Spotlight
    • Sponsored Content
  • Latest News
    • What’s New
    • Industry Events
    • Tradeshow News
    • On The Move
    • Other News
    • Furry Friends
  • Columnists
  • Classifieds
  • Subscriptions
    • Newsletter Signup
    • Print Subscription

© 2020 Southern Jewelry News.