Sourcing

Petra Finds 39-Carat Rough Blue Diamond at Cullinan

SourcingApr 06, 2021

Petra Finds 39-Carat Rough Blue Diamond at Cullinan

The Type IIb stone is of “exceptional quality” in terms of both color and clarity, the miner said.

20210406_Petra-blue.jpg
Petra Diamonds announced the recovery of this 39.34-carat blue diamond from the Cullinan mine in South Africa, which it said is of “exceptional quality” in terms of both color and clarity.
London—Petra Diamonds Ltd. has another big blue diamond in its inventory. 

The diamond miner announced Thursday its recovery of a 39.34-carat Type IIb rough blue diamond of “exceptional quality” in terms of both color and clarity from the Cullinan mine in South Africa. 

The company said it expects to sell the diamond via a special tender. 

 Related stories will be right here … 

The Cullinan mine was originally called Premier but was renamed in homage to the famous 3,106-carat rough diamond of the same name that came from there.

A former De Beers property that has been operating since the early 1900s, Cullinan is known for producing large stones and blue diamonds.

In fact, another big diamond came from the mine earlier this year—Petra said it recently sold a 299.3-carat diamond recovered at Cullinan in January to Stargems DMCC for $12.18 million.

In addition to Cullinan, Petra Diamonds also owns Finsch and Koffiefontein in South Africa and Williamson, a currently mothballed open-pit mine in Tanzania.

The miner just completed its debt-for-equity restructuring, which it started after being unable to find a buyer after putting itself up for sale. 

That involved its $650 million bond debt being replaced by $337 million in new notes—$30 million from existing debtholders and the rest converted into equity.

Brecken Branstratoris the senior editor, gemstones at National Jeweler, covering sourcing, pricing and other developments in the colored stone sector.

The Latest

Selena Gomez, Benny Blanco, Engagement Ring
TrendsDec 13, 2024
Selena Gomez Said ‘Forever Begins Now’ to Marquise Diamond Engagement Ring

Estimates on the size and value of the solitaire diamond, which is mounted on a diamond pavé-set yellow gold band, vary.

Martin Katz tanzanite drop earrings
TrendsDec 13, 2024
Piece of the Week: Martin Katz’s Tanzanite Drops

These half-moon tanzanite earrings totaling 25 carats are part of a special trunk show taking place this weekend in Dallas.

My Next Question webinar graphic
Recorded WebinarsDec 13, 2024
Watch: The Highs and Lows of 2024

The National Jeweler editors recap the top news, the best jewels, and their favorite stories of the year.

ja nj btyb.jpg
Brought to you by
Advocacy and Excellence: How Jewelers of America Is Committed to Elevating Our Industry

For over a century, Jewelers of America has been the voice of the industry and valuable resource to jewelers across the country.

Tom Brady’s Rolex Daytona Paul Newman “John Player Special”
AuctionsDec 12, 2024
Tom Brady’s Watches Top $4M at Sotheby’s Auction

The highest-grossing lot of the sale was the retired QB’s Rolex Paul Newman Daytona “John Player Special.”

Weekly QuizDec 12, 2024
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Carrie Forman
MajorsDec 12, 2024
Mark Henry Appoints New Director of Sales

Carrie Forman joins the brand to guide it into the next phase of growth with major and independent retailers in the U.S. and abroad.

Woman wearing a snake ring and bracelet
CollectionsDec 12, 2024
The Jared Atelier x Vera Wang Collection Emphasizes Elegance

The high jewelry collection features 14 one-of-a-kind pieces, with serpent and ribbon motifs winding their way through the collection.

undefined.png
Brought to you by
Protecting Your Sparkle: Why Screening Has Become Essential

While no reputable jeweler would knowingly sell lab-grown stones as natural, it's a growing possibility.

Stock image of a gavel
CrimeDec 11, 2024
Former Tiffany & Co. Factory Supervisor Sentenced for Stealing Precious Metals

A federal judge gave Benjamin Preacher 59 days in jail, plus 10 months of home confinement and two years of supervised release.

Grader looking into microscope at IGI lab
GradingDec 11, 2024
IGI Set to Go Public Next Week

In a CNBC interview, CEO Tehmasp Printer discussed the IPO in India and what declining lab-grown diamond prices mean for the company.

Heuer Monaco Ref. 1133B
AuctionsDec 11, 2024
Sotheby’s Important Watches Sale Fetches $16.6M

The offering included vintage Rolexes, timepieces worn in “Titanic,” Steve McQueen's watch, and a special Citizen pocket watch.

Stephanie Gottlieb, Anna Harman, Stephanie Gottlieb x Studs Collection
CollectionsDec 11, 2024
Stephanie Gottlieb Brings Natural Diamonds to Studs

The 13-piece “Stephanie Gottlieb x Studs” collection is the piercing studio’s first fine jewelry offering to feature the gemstone.

Exterior of Sauer’s Madison Avenue Store
IndependentsDec 10, 2024
Sauer Opens First U.S. Store

The Brazilian jewelry brand made a home on New York City’s Madison Avenue with exclusive pieces only available at the location.

Person at keyboard holding credit card
SurveysDec 10, 2024
Jewelry Among Top Sellers on Cyber Monday, Says Adobe

An Adobe Analytics report explored the rise in mobile shopping, the popularity of Buy Now Pay Later options, and peak shopping hours.

American Gem Trade Association and University of Arizona
Events & AwardsDec 10, 2024
AGTA Launches Scholarship for University of Arizona Geosciences Students

The inaugural Dick Greenwood Memorial Scholarship in Gems Science will cover the fall 2025 and spring 2026 semesters.

JA New York Show Entrance
Events & AwardsDec 10, 2024
JA New York To Debut 2 New Pavilions at Spring 2025 Show

A Piazza Italia pavilion will feature Italian designers and manufacturers while “MJSA Showcase” brings over a piece of the MJSA Expo.

Ray Griffiths and Ray Griffiths: The Works
CollectionsDec 09, 2024
Ray Griffiths’ First Coffee Table Book Spans 5 Decades of Design

“Ray Griffiths: The Works” tells the story of the master jeweler’s career, which started with an apprenticeship in Australia at age 15.

Grant Mobley and Thomas Davis
MajorsDec 09, 2024
Thomas Davis, Grant Mobley Join WJA Foundation Board

Davis is the director of business development at Select Jewelry Inc., and Mobley is the jewelry and watch editor at the Natural Diamond Council.

Movado campaign
FinancialsDec 09, 2024
Movado’s Q3 Sales Down 3% Amid ‘Challenging’ Environment

The retailer has been upping its marketing spend to drive revenue growth and brand awareness.

Treiber & Straub store Brookfield, Wisconsin
IndependentsDec 06, 2024
After 44 Years in Business, This Wisconsin Independent Is Closing

Mike Straub and John Treiber opened Treiber & Straub in 1980 with the goal of bringing Milwaukeeans the best jewelry brands.

Pantone Color of the Year Mocha Mousse
TrendsDec 06, 2024
Pantone’s Color of the Year Is a Delicious Mousse

The color for 2025, “Mocha Mousse,” embodies thoughtful indulgences and everyday pleasures.

Cocoerow Fine Jewelry’s Kokoro Ant Pendant
CollectionsDec 06, 2024
Piece of the Week: Cocoerow Fine Jewelry’s ‘Kokoro’ Pendant

The Yoruba word for ant, “Kokoro” embodies the strength of womanhood in ant society while highlighting responsible sourcing.

Roberto Coin jewelry
FinancialsDec 06, 2024
Roberto Coin Acquisition Gives Watches of Switzerland a Boost in H1

The retailer’s jewelry sales doubled, with branded jewelry performing especially well.

Gold rings
FinancialsDec 05, 2024
Signet Jewelers’ Q3 Sales Slide Amid Slow Engagement Ring Sales, Tech Issues

The jewelry retailer addressed the lab-grown diamond “disruption,” the price of gold, and its holiday weekend performance.

Hand holding shopping bags
SurveysDec 05, 2024
Consumer Confidence Rises Again in November

A more positive view of the current labor market boosted the Conference Board’s index last month.

Michael S. Krzemnicki
Events & AwardsDec 05, 2024
Michael S. Krzemnicki to Receive 2024 Bonanno Award

The director of the Swiss Gemmological Institute (SSEF) will be honored for his impact on gemology and dedication to advancing the science.

1.png
Supplier BulletinDec 05, 2024
Join Us For Color's Premier Show: 2025 AGTA GemFair Tucson

Sponsored by 2025 AGTA GemFair Tucson

×

This site uses cookies to give you the best online experience. By continuing to use & browse this site, we assume you agree to our Privacy Policy