Auctions

‘The Enigma,’ a 555-Carat Black Diamond, Could Sell for $6M at Auction

AuctionsJan 18, 2022

‘The Enigma,’ a 555-Carat Black Diamond, Could Sell for $6M at Auction

The massive natural fancy black diamond will be offered without reserve at Sotheby’s next month.

20220118_Enigma-diamond-Sothebys.jpg
The 555.55-carat “Enigma” diamond will be the largest cut diamond to appear at auction when it hits the block at Sotheby’s next month. The diamond will be sold without reserve.
Dubai—A mammoth black diamond soon will make its auction debut. 

In February, Sotheby’s will put “The Enigma” up on the block. Weighing 555.55 carats, Sotheby’s said it is the largest faceted diamond of any kind to ever appear at auction.

The Engima is being sold without reserve, meaning there is no minimum bid required to win the stone, though the auction house said it believes the diamond could achieve £3 million-£5 million ($4.1 million-$6.8 million).

Both GIA and Gübelin issued reports for The Engima, identifying it as a natural fancy black diamond. 

GIA’s library said natural fancy black diamonds have a Mohs hardness of 10, like other diamonds.

They owe their color to numerous minute dark crystals or clouds of graphite, magnetite, hematite, or native iron, it added, and because they have so many inclusions, black diamonds are difficult to polish.

20220118_Enigma-diamond-Sothebys-insert.jpg
Another view of “The Enigma”

The Enigma is a free-form faceted stone, both labs stated in their reports. Its shape is inspired by the hamsa, a palm-shaped symbol that is a sign of protection.  

The hamsa is associated with the number five, reflected in the diamond’s 555.55 carats as well as its 55 facets.

In 2004, when it issued the grading report, GIA said The Enigma was “the largest fancy black, natural color and largest diamond” it had graded to date, and Gübelin said it was the largest faceted diamond it had examined to date. 

The stone was also listed as the largest cut diamond in the world in the 2006 Guinness Book of World Records.  

 Related stories will be right here … 

The diamond has never been seen on the market nor has it been exhibited to the public, but now “The Enigma” will take center stage as part of a dedicated online-only auction at Sotheby’s.

Sotheby’s unveiled the diamond Monday. It will be on view at the Dubai International Financial Centre from Jan. 17-20, after which it will travel to Los Angeles from Jan. 24-26 and then London from Feb. 2-9.

The one-lot auction will be open for online bidding from Feb. 3-9.

Sotheby’s will again accept cryptocurrency as payment, following the sale of the “10138 The Key” for a record $12.3 million via cryptocurrency last year in Hong Kong. 

The Latest

Counterfeit Cartier and Audemars Piguet watches
CrimeDec 22, 2025
Customs Seizes Hundreds of Fake Rolex, Cartier Watches

In the recent multi-shipment seizure, CBP also found counterfeit Audemars Piguet, Moncler, and Chrome Hearts items.

Helzberg new store concept rendering
EditorsDec 22, 2025
How Helzberg Is Reimagining Its Stores

Helzberg’s Chief Retail Officer Mitch Maggart shared details about its tests of a new store concept rooted in an elevated luxury experience.

Graphic for the 2025 Year-End Webinar
Recorded WebinarsDec 22, 2025
2025 Jewelry Rewind: Looking Back on an Eventful Year

Jewelers of America execs and National Jeweler editors discuss tariffs, the sky-high gold price, and the engagement that broke the internet.

Recipients Collage 2025 - NJ (1872 x 1050 px) (1872 x 1052 px).png
Brought to you by
Impacting Tomorrow Today

How Jewelers of America’s 20 Under 40 are leading to ensure a brighter future for the jewelry industry.

Pair of Ippolita Lollatini earrings
MajorsDec 19, 2025
MadaLuxe Group Acquires Ippolita

The luxury goods company said founder Ippolita Rostagno will remain at the brand’s helm.

Weekly QuizDec 18, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Bulgari CEO Laura Burdese
MajorsDec 19, 2025
LVMH Names New Bulgari CEO

Laura Burdese, who joined the Italian luxury brand in 2022, will take on the role in July.

Harwell Godfrey Lil Buddies
EditorsDec 19, 2025
2025 Jewelry Superlatives: A Yearbook-Style Year in Review

The National Jeweler editors revisit the most noteworthy industry happenings and design trends from 2025.

roseco-catalog.png
Brought to you by
Roseco Releases New Full-Line Catalog

Roseco’s 704-page catalog showcases new lab-grown diamonds, findings, tools & more—available in print or interactive digital editions.

Diamond ring in parts
Lab-GrownDec 18, 2025
Kira Jewels Debuts Custom Lab-Grown Diamond Jewelry Service

The lab-grown diamond grower now offers custom engagement and fashion jewelry through its Kira Custom Lab Jewelry service.

Terry and Cindy Chandler at AGS Conclave
EditorsDec 18, 2025
Terry Chandler Looks Back on 40 Years of Opportunity, Change, and Friends

Chandler got his start at Michelson Jewelers and has served as DCA president and CEO since 2001. He will retire at the end of the month.

Rendering of Bob’s Watches JFK airport store
WatchesDec 18, 2025
Bob’s Watches to Open Store in New York’s JFK Airport

The boutique is slated to open this week inside Terminal 8, offering pre-owned Rolex watches and more to international travelers.

JamAlert 1872x1052.png
Supplier BulletinDec 18, 2025
Cell Jammers Are Targeting Your Business. Here's How to Beat Them

Sponsored by Digital Monitoring Products

Fabergé egg pendant near gloved hand
CrimeDec 17, 2025
Man Pleads Not Guilty to Swallowing Fabergé Pendant

The special-edition egg pendant ingested in a New Zealand jewelry store was recovered after a six-day wait.

Ashley Zhang Jewelry Snake Necklace, Renato Cipullo Hematite Blaze Necklace, Vanessa Fernandez Studio Curva Wrap Hoops, Hernsdorf Tears of Aphrodite Necklace, Robinson Pelham Tsar Star Earrings, Marla Aaron Nymphenburg Lock, Lof The Valentine Ring
EditorsDec 17, 2025
2025 Jewelry Rewind: The Best Piece of the Week Picks

Associate Editor Natalie Francisco plays favorites with Piece of the Week, selecting a standout piece of jewelry from each month of 2025.

Lucy Hale in Jacquie Aiche’s Love and Desire Campaign
CollectionsDec 17, 2025
Lucy Hale Stars in Jacquie Aiche’s Holiday Campaign

The “Love and Desire” campaign is inspired by the magic that follows when one’s heart leads the way, said the brand.

SSEF logo
GradingDec 17, 2025
SSEF Announces 2025 Scholarship Winners

Two awardees will receive free tuition for an educational course at the Swiss lab, with flights and lodging included.

Pandora Alexander Lacik and Berta de Pablos-Barbier
MajorsDec 16, 2025
Pandora’s New CEO Will Step Up Early

Berta de Pablos-Barbier will replace Alexander Lacik at the start of January, two months earlier than expected.

JAR pendant brooch, fancy intense blue diamond
AuctionsDec 16, 2025
Suzanne Belperron, JAR Shine in Sotheby’s First Auctions at New HQ

Sotheby’s held its first two jewelry sales at the Breuer building last week, and they totaled nearly $44 million.

The Jewelry Symposium logo
Events & AwardsDec 16, 2025
TJS Now Accepting Scholarship Applications for 2026

Winners will receive free registration and lodging for its fourth annual event in Detroit.

National Jeweler columnists and PR professionals Duvall O’Steen and Jen Cullen Williams
ColumnistsDec 16, 2025
Beyond Unboxing: Creative Reveals to Drive Reach and Engagement

Here are six ideas for making more engaging content for Instagram Reels and TikTok, courtesy of Duvall O’Steen and Jen Cullen Williams.

Tiffany & Co. logo, Anna Martin, CD Peacock logo
Events & AwardsDec 16, 2025
Diamonds Do Good Names 2026 Award Recipients

The honorees include a notable jewelry brand, an industry veteran, and an independent retailer.

Stock image of gavel
CrimeDec 15, 2025
Men Receive Life Sentences in Home Invasion Murder of Jeweler

Carlos Jose Hernandez and Joshua Zuazo were sentenced to life without the possibility of parole in the 2024 murder of Hussein “Sam” Murray.

Eduard Stefanescu, left, and Sara Yood, right
Policies & IssuesDec 15, 2025
Sara Yood Named Co-Chair of RJC Standards Committee

Yood will serve alongside Eduard Stefanescu, the sustainability manager for C.Hafner, a precious metals refiner in Germany.

MS Rau Aspen rendering
IndependentsDec 15, 2025
M.S. Rau to Open Store in Aspen

The New Orleans jeweler is also hosting pop-up jewelry boutiques in New York City and Dallas.

Tiffany & Co. Paraíba tourmaline jewelry
AuctionsDec 12, 2025
13.54-Carat Paraíba Tourmaline Sets Records at Christie’s

Set in a Tiffany & Co. necklace, it sold for $4.2 million, the highest price and price per carat paid for a Paraíba tourmaline at auction.

David Webb holiday window
MajorsDec 12, 2025
David Webb Reveals Ice-Cold Holiday Window Display

The jeweler’s “Deep Freeze” display showcases its iconic jewelry designs frozen in a vintage icebox.

Oscar Heyman Yellow Green Sphene and Diamond Ring
CollectionsDec 12, 2025
Piece of the Week: Oscar Heyman’s Sphene Ring

Take luxury gifting to new heights this holiday season with the jeweler’s showstopping 12-carat sphene ring.

×

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