WatchesDec 30, 2025
Bulova, Stetson Collab on Watches With Western FlairThe new Bulova x Stetson designs highlight two animals often associated with the American West—the bison and the Texas Longhorn.
AuctionsApr 01, 2016
‘Oppenheimer Blue’ Diamond Could Sell For $45 Million
The rectangular-cut, 14.62-carat stone will be the largest and finest fancy vivid blue diamond ever offered at auction when it goes up for sale at Christie’s Geneva next month.
The rectangular-cut, 14.62-carat “Oppenheimer Blue” is expected to sell for between $38-$45 million when it hits the auction block in May. It is the largest and finest fancy vivid blue diamond ever offered at auction, Christie’s said.
Geneva--When Christie’s holds its Magnificent Jewels sale in Geneva next month, it will offer the largest and finest fancy vivid blue diamond ever seen at auction.
The “Oppenheimer Blue,” a rectangular-cut, 14.62-carat stone, is expected to sell for between $38 million and $45 million when it hits the auction block in May.
This big blue diamond was owned by a man who certainly knew a thing or two about the stones.
Sir Philip Oppenheimer controlled the Diamond Syndicate in London and began working in the family business at De Beers London in 1934, where he sorted and valued diamonds.
Later, as head of the London-based Central Selling Organisation for more than 45 years and chairman of the Diamond Trading Company branch, he oversaw a diamond sales business set up by De Beers to control the global diamond supply.
Christie’s Magnificent Jewels sale is scheduled to take place at the Four Season Hotel des Bergues on May 18.
The sale also will include a collection of 46 pieces that once belonged to H.S.H Gabriela Princess zu Leiningen, estimated to realize more than $15 million total and featuring pieces from brands such as Cartier, Boucheron, Tiffany & Co. and Van Cleef & Arpels.
The Princess comes from a successful German entrepreneurial and philanthropic family. She was married to Prince Karl-Emich zu Leiningen for seven years and also was a qualified lawyer who became a consultant for UNESCO, advising on equality and women’s rights.
In May 1998, Princess Gabriela married His Highness Prince Karim Aga Khan IV, 49th Imam of the Ismaili community and international entrepreneur. During their 16-year marriage, the Princess held the title Begum Inaara Aga Khan and received a number of jewels from her-then husband to build upon her already large collection.
Click through she slideshow below to see six of the pieces belonging to the princess that will be up for auction.
This Cartier necklace features Colombian emeralds and diamonds, with the detachable emerald pendant weighing almost 40 carats. It’s expected to sell in the range of $2.5 million and $3.5 million.
This five-strand natural pearl and diamond necklace is estimated to go for between $350,000 and $500,000 in May.
The highlight of Princess Gabriela’s lot, according to Christie’s, is the 36-carat, D color Pohl diamond. It was the first major diamond to be polished in the United States and was sold to a member of the Chrysler family in 1943. It was purchased for the Princess at Cartier in 1998 and could garner as much as $5.5 million.
These Cartier ear pendants boast Burmese sapphires, weighing 24.69 and 25.63 carats, and diamond-set star tops. They are predicted to sell in the range of $600,000 and $800,000.
A pair of mystery-set ruby and diamond “Poppy” earrings by Van Cleef & Arpels could sell for between $100,000 and $150,000.
This ruby and diamond novelty brooch by Cartier is modeled after a violin, with one side opening to reveal a watch with a circular dial, Roman numerals and quartz movement, all mounted in gold. It could sell for up to $15,000.
More on Auctions
The Latest
MajorsDec 30, 2025
Becka Johnson Kibby to Lead Edge Retail AcademyAs part of the leadership transition, Sherry Smith will take on the role of vice president of coaching strategy and development.
CollectionsDec 30, 2025
Rahaminov Diamonds Pops Up in FloridaIts residency at Yamron Jewelers will run through May 2026.
Brought to you by
Impacting Tomorrow TodayHow Jewelers of America’s 20 Under 40 are leading to ensure a brighter future for the jewelry industry.
IndependentsDec 29, 2025
In Memoriam: Industry Friends We Lost in 2025From influential executives to innovative designers, we pay tribute to the people we said goodbye to this year.
Weekly QuizDec 23, 2025
This Week’s QuizTest your jewelry news knowledge by answering these questions.
MajorsDec 29, 2025
Tanishq Opens New Stores in Florida, VirginiaThe retailer is expanding into areas with large Indian and South Asian populations.
MajorsDec 29, 2025
Nanis Opens First Flagship Store The Italian brand has opened its first flagship amid the peaks of the Dolomites in Madonna di Campiglio, Italy.
Brought to you by
Roseco Releases New Full-Line CatalogRoseco’s 704-page catalog showcases new lab-grown diamonds, findings, tools & more—available in print or interactive digital editions.
SourcingDec 29, 2025
‘Unearthed: Raw Beauty’ Exhibition Opens at LA MuseumThe new curation at the Natural History Museum of Los Angeles County showcases rare gem and mineral specimens in their uncut, natural state.
CrimeDec 24, 2025
LA Jewelry District Couple Pleads Guilty to Hiding Millions from IRSThe couple pleaded guilty to concealing at least $127 million in cash transactions at its precious metals businesses.
SurveysDec 24, 2025
Consumer Confidence Falls Again in DecemberConsumers shared concerns about prices, inflation, tariffs, trade, and politics in the survey’s write-in response section.
Events & AwardsDec 24, 2025
NYC Jewelry, Antique, & Object Show Announces Winter EventThe new show will take place Jan. 23-25, 2026.
SourcingDec 23, 2025
Mining Titan Brian Gilbertson Dies at 82The former BHP Billiton leader and Gemfields chairman is remembered for his influential leadership throughout his 50-year mining career.
Events & AwardsDec 23, 2025
Bulgari Reimagines Costume Designers Guild AwardThe LVMH-owned brand has partnered with the costume design union to revamp its award for 2026.
MajorsDec 23, 2025
Kering to Acquire Stake in Raselli Franco GroupThe luxury titan inked a deal to acquire an initial minority stake in the jewelry manufacturer with a pathway to full ownership by 2032.
MajorsDec 23, 2025
For Future Reference Vintage Enters Bloomingdale’sThe company’s curation of unsigned vintage and estate jewelry debuted at the Bloomingdale’s in Costa Mesa, California.
CrimeDec 22, 2025
Customs Seizes Hundreds of Fake Rolex, Cartier WatchesIn the recent multi-shipment seizure, CBP also found counterfeit Audemars Piguet, Moncler, and Chrome Hearts items.
EditorsDec 22, 2025
How Helzberg Is Reimagining Its StoresHelzberg’s Chief Retail Officer Mitch Maggart shared details about its tests of a new store concept rooted in an elevated luxury experience.
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.
MajorsDec 19, 2025
MadaLuxe Group Acquires Ippolita The luxury goods company said founder Ippolita Rostagno will remain at the brand’s helm.
MajorsDec 19, 2025
LVMH Names New Bulgari CEOLaura Burdese, who joined the Italian luxury brand in 2022, will take on the role in July.
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.
AuctionsDec 18, 2025
Audemars Piguet Reclaims Historic Pocket Watch at AuctionIt purchased the “Grosse Pièce,” an ultra-complicated Audemars Piguet pocket watch from the ‘20s, for a record-breaking price at Sotheby’s.
Lab-GrownDec 18, 2025
Kira Jewels Debuts Custom Lab-Grown Diamond Jewelry ServiceThe lab-grown diamond grower now offers custom engagement and fashion jewelry through its Kira Custom Lab Jewelry service.
EditorsDec 18, 2025
Terry Chandler Looks Back on 40 Years of Opportunity, Change, and FriendsChandler 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.
WatchesDec 18, 2025
Bob’s Watches to Open Store in New York’s JFK AirportThe boutique is slated to open this week inside Terminal 8, offering pre-owned Rolex watches and more to international travelers.
Supplier BulletinDec 18, 2025
Cell Jammers Are Targeting Your Business. Here's How to Beat ThemSponsored by Digital Monitoring Products
