AuctionsJun 18, 2026
Paraíba Tourmalines Sell for $3.4M at Sotheby'sThe recent high jewelry auction, which also featured the sale of a 10-carat blue diamond, was “a celebration of color.”
SourcingApr 19, 2019
41-Carat Blue Diamond Found in Botswana
It’s reportedly the biggest blue diamond ever recovered in the country and was cut into a 20.46-carat oval.
“The Okavango Blue of Botswana” is a 20.46-carat oval-shaped diamond cut from a 41.1-carat chunk of rough recovered from Botswana’s Orapa mine in May 2018.
Gaborone, Botswana—The Okavango Diamond Company (ODC) has announced the cutting and polishing of what it says is the largest blue diamond ever found in Botswana.
Debswana, the mining company jointly owned by De Beers Group and the government of Botswana, dug up the 41.1-carat rough stone at the Orapa mine in May 2018.
ODC, owned by the Botswana government, purchased the rough and dubbed it “The Okavango Blue of Botswana” in September 2018.
It began polishing the diamond in December.
This month, the company unveiled the polished result to the public with a bit of fanfare that includes the below promotional video and even a poem.
The Gemological Institute of America has graded the Type IIb 20.46-carat oval-shaped diamond as fancy deep blue with VVS2 clarity.
ODC noted in the news release on the stone what many in the jewelry industry already know, that the mineral boron, present in ocean rock during volcanic-forming activity 1-3 billion years ago, is responsible for creating the diamond’s blue hue.
RELATED CONTENT—Going Deep: What the GIA Just Learned About Blue Diamonds
The company’s managing director, Marcus ter Haar, said: “From the first moment we saw the diamond, it was clear we had something very special. Everyone who has viewed the 20-carat polished diamond has marveled at its unique coloration, which many see as unlike any blue stone they have seen before.
“It is incredibly unusual for a stone of this color and nature to have come from Botswana—a once-in-a-lifetime find, which is about as rare as a star in the Milky Way. At ODC we have access to 15 percent of Debswana’s run-of-mine production and feel extremely fortunate to be involved in such a singular find.”
The stone has its own website and dedicated social media accounts.
ODC said it will put The Okavango Blue up for sale in November.
View this post on InstagramA post shared by Okavango Diamond Company (@okavangodiamondcompany) on Apr 17, 2019 at 1:10am PDT
Editors' Picks
Sponsored by
More on Sourcing
The Latest
CollectionsJun 18, 2026
Michelle Obama Wears Almasika Earrings Symbolizing Feminine PowerShe wore the “Le Cauri Endiamanté” earrings, our Piece of the Week, in the Obamas’ first dual portrait for the Obama Presidential Center.
PodcastsJun 17, 2026
Episode 6: Las Vegas 2026-Trends, Traffic, Broken BathroomsCouture’s Michelle Orman joins Amanda Gizzi and Michelle Graff for this special post-Market Week episode of My Next Question.
Brought to you by
Wedding Band Trends 2026: Personalization Takes Center StageColored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.
GradingJun 17, 2026
SSEF Issues Warning on Refilled EmeraldsThe lab is seeing emeralds with filler added post-testing enter the market, accompanied by reports that indicate little to no treatment.
Weekly QuizJun 17, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
WatchesJun 17, 2026
Patek Philippe’s ‘Visionary’ Leader Philippe Stern Dies at 88 The third generation of the Stern family to head Patek Philippe, he navigated the “quartz crisis” and preserved the brand’s independence.
MajorsJun 17, 2026
James Avery to Revamp In-Store Retail ExperienceThe Texas-based jeweler is gradually rolling out a new experience-forward layout in its stores.
Brought to you by
Building the Future of Jewelry Retail: DCA Expands Education, Leadership Development, and Workforce SolutionsDCA is preparing the next generation of professionals by supporting workforce development, leadership growth, and career advancement.
MajorsJun 17, 2026
Seahawks’ Super Bowl Ring Blends Meaningful Design, Technical CraftsmanshipThe Super Bowl LX champions were honored with diamond and blue sapphire rings by Jason of Beverly Hills.
Policies & IssuesJun 17, 2026
Community for Ethical Jewelry Names New Executive DirectorMarianna Smirnova previously spent a decade working with the Responsible Minerals Initiative, in addition to other relevant roles.
MajorsJun 16, 2026
5 Things to Know About the 2026 NBA Championship TrophyThe New York Knicks took home the Larry O'Brien Trophy crafted by Tiffany & Co.
TrendsJun 16, 2026
Post-Vegas Jewelry Trend Report: Big Beads, Western Flair, White MetalsAssociate Editor Natalie Francisco lists the trends she spotted during Jewelry Market Week that will dominate the second half of 2026.
MajorsJun 16, 2026
Sasha Primak Hires New Design DirectorThe manufacturer has tapped Alicia Arnold, the former director of custom design at Tiny Jewel Box.
IndependentsJun 15, 2026
DeBoulle Diamond & Jewelry to Renovate Dallas FlagshipThe revamped, elevated space will feature a two-story Patek Philippe atelier and a rooftop patio for parties.
WatchesJun 15, 2026
G-Shock, Coca-Cola Partner on Bottle-Inspired WatchThe special-edition piece marks the 140th anniversary of the iconic beverage brand.
TrendsJun 15, 2026
Amanda’s Style File: Tiny Charms Are TrendingHere are 13 small charms to inspire your layered looks this summer.
AuctionsJun 12, 2026
16th-Century ‘Hogback’ Diamond Ring Going Up for Auction in LondonFound by a metal detectorist, the ring likely belonged to a wealthy, possibly royal, owner, said Noonans.
CollectionsJun 12, 2026
Chouette Designs To Launch Collection Celebrating All Types of LoveOur Pride Month Piece of the Week, the “Margaux” ring, is part of the wife-and-wife team’s new “Lovestoned” collection.
Events & AwardsJun 12, 2026
CBG Announces Plans for Phoenix ShowThe group has named the keynote speaker and announced a new pavilion for its next event, which is slated for September.
EditorsJun 11, 2026
This Was the Best Animal Jewelry in Las Vegas From lions and hippos to snails and fish, Senior Editor Lenore Fedow wrangles her picks for cutest jewelry critters in Las Vegas.
MajorsJun 11, 2026
Former Cartier Creative Director To Head Chanel’s Jewelry Creation StudioMarie-Laure Cérède will join Chanel as the new director of its jewelry creation studio, starting in October.
Lab-GrownJun 11, 2026
Smiling Rocks’ ‘Wish Jar’ Generates 100+ Wishes in Las Vegas At the JCK show, the lab-grown diamond brand teamed up with Jewelers for Children to support Make-A-Wish India.
SourcingJun 11, 2026
Signet Jewelers Exec Joins Diamonds Do Good BoardIlana McCabe is Signet’s vice president of public relations and brand communications.
AuctionsJun 10, 2026
31.62-Carat ‘Azure Blue’ Diamond Sells For $8M+ at Christie’sIt was a banner day for blue gemstones, with another blue diamond topping $8 million and a 41-carat sapphire going for $2.3 million.
MajorsJun 10, 2026
Saks Global Receives Bankruptcy Court Approval for ReorganizationThe approval means the retailer is on track to exit bankruptcy proceedings this summer.
CrimeJun 10, 2026
2 Suspects Arrested in Texas Jewelry Store RobberyThe men are believed to be part of the group of several masked suspects that robbed Marc Robinson Jewelers in April.
CollectionsJun 10, 2026
Sylvie Debuts ‘Elevated’ Bridal Collection Inspired By Designer’s RingThe bridal-focused brand is also launching its Custom Atelier this summer, a digital custom design tool for its authorized retailers.
