AuctionsNov 12, 2025
‘Mellon Blue’ Diamond Sells for $7M Less Than It Did a Decade AgoAuctionsJan 09, 2026
Christie’s Names New Global Managing Director for Luxury
Kimberly Miller has been promoted to the role.
Kimberly Miller, who previously served as Christie's regional managing director for luxury Americas, is the auction house’s new global managing director for its luxury division.
New York—Christie’s has announced that it has promoted Kimberly Miller to global managing director for its luxury division.
Miller previously served as the auction house’s regional managing director for luxury Americas.
There, she led business strategy, sales expansion, and financial performance across its jewelry, watches, wine, and handbags departments.
Christie’s said she played a pivotal role in the integration of Gooding & Company, an auction house specializing in collector cars that Christie’s acquired in 2024.
She also oversaw the auction house’s relaunch of wine auctions in New York with “The Cellar of William I. Koch” sale last year.
Miller began her career in Christie’s wine department in 2010.
Prior to joining the luxury division, she held senior specialist and management roles at Sotheby’s.
In her new role, she will remain based in New York and will direct all aspects of the auction house’s luxury business, including both live and online auctions and private sales.
She also will work closely with the specialist departments in Geneva, Hong Kong, London, New York, and Paris.
Miller holds a bachelor’s degree in art history from Temple University in Philadelphia and an MBA from the NYU Stern School of Business.
Christie’s luxury division has had “an exceptional year,” the auction house said, citing its record-breaking $25.6 million sale of the “Mellon Blue” diamond, the highest‑value jewelry lot sold at auction in 2025.
In 2025, the luxury division realized $795 million in sales, up 17 percent from the previous year.
Related stories will be right here …
Miller previously served as the auction house’s regional managing director for luxury Americas.
There, she led business strategy, sales expansion, and financial performance across its jewelry, watches, wine, and handbags departments.
Christie’s said she played a pivotal role in the integration of Gooding & Company, an auction house specializing in collector cars that Christie’s acquired in 2024.
She also oversaw the auction house’s relaunch of wine auctions in New York with “The Cellar of William I. Koch” sale last year.
Miller began her career in Christie’s wine department in 2010.
Prior to joining the luxury division, she held senior specialist and management roles at Sotheby’s.
In her new role, she will remain based in New York and will direct all aspects of the auction house’s luxury business, including both live and online auctions and private sales.
She also will work closely with the specialist departments in Geneva, Hong Kong, London, New York, and Paris.
Miller holds a bachelor’s degree in art history from Temple University in Philadelphia and an MBA from the NYU Stern School of Business.
Christie’s luxury division has had “an exceptional year,” the auction house said, citing its record-breaking $25.6 million sale of the “Mellon Blue” diamond, the highest‑value jewelry lot sold at auction in 2025.
In 2025, the luxury division realized $795 million in sales, up 17 percent from the previous year.
Editors' Picks
Sponsored by
More on Auctions
The Latest
CrimeJan 15, 2026
D.C. Rapper ‘Taliban Glizzy’ Sentenced to 18+ Years for Jewelry Store RobberiesTrevor Jonathan Wright led a crew in a string of armed robberies targeting South Asian-owned jewelry stores on the East Coast.
Events & AwardsJan 15, 2026
Jewelers of Americas’ ‘20 Under 40’ Nominations Now OpenThe program recognizes rising professionals in the jewelry industry.
Events & AwardsJan 15, 2026
Registration for JCK Las Vegas 2026 Is Now OpenA new lifestyle section and a watch showcase have been added to this year’s event.
Brought to you by
How Jewelers Can Fight Back Against Cell JammersCriminals are using cell jammers to disable alarms, but new technology like JamAlert™ can stop them.
TrendsJan 15, 2026
Don’t Double-Dip With This Golden ChipAvocados From Mexico is celebrating those who love to double-dip in game day guacamole with a 14-karat yellow gold tortilla chip necklace.
Weekly QuizJan 15, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
SourcingJan 15, 2026
Nearly 42-Carat Blue Diamond Discovered in South AfricaPetra Diamonds unearthed the 41.82-carat, Type IIb blue diamond at the Cullinan Mine.
CollectionsJan 14, 2026
Marie Lichtenberg Lassos Leather for New BraceletsThe brand is trading its colorful fabric cords for Italian leather in its “Lasso” baby locket bracelets.
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.
TechnologyJan 14, 2026
“My Next Question” Enters Its Podcast Era National Jeweler and Jewelers of America’s popular webinar series is evolving in 2026.
MajorsJan 14, 2026
Saks Files for Bankruptcy, Names New CEOThe department store chain owes millions to creditors like David Yurman, Roberto Coin, Kering, and LVMH.
CollectionsJan 14, 2026
Boucheron Names Colman Domingo as Brand AmbassadorThe award-winning actor’s visionary approach and creativity echo the spirit of Boucheron, the brand said.
IndependentsJan 14, 2026
Kansas Jeweler Wins 2025 ‘Wag’ AwardEdge Retail Academy honored Burnell’s Fine Jewelry in Wichita, Kansas, with its annual award for business excellence.
ColumnistsJan 13, 2026
2025 Was a ‘Price Up, Units Down’ Year, Here’s What That Signals for 2026 In a market defined by more selective consumers, Sherry Smith shares why execution will be independent jewelers’ key to growth this year.
IndependentsJan 13, 2026
Orr’s Jewelers Opens New Location in Pittsburgh’s Strip DistrictThe family-owned jeweler’s new space is in a former wholesale produce market.
CrimeJan 13, 2026
Alleged Getaway Driver Charged in Florida Jewelry Store RobberyIvel Sanchez Rivera, 52, has been arrested and charged in connection with the armed robbery of Tio Jewelers in Cape Coral, Florida.
SourcingJan 13, 2026
Rio Grande To Offer Calibrated Diamond MeleeThe supplier’s online program allows customers to search and buy calibrated natural and lab-grown diamond melee, including in fancy shapes.
Events & AwardsJan 13, 2026
NYC Jewelry, Antique, & Object Show Announces Winter EventThe new show will take place Jan. 23-25, 2026.
PodcastsJan 12, 2026
Introducing My Next Question, the PodcastA monthly podcast series for jewelry professionals
EditorsJan 12, 2026
Platinum, White Gold Rule the 2026 Golden GlobesAssociate Editor Natalie Francisco highlights her favorite jewelry moments from the Golden Globes, and they are (mostly) white hot.
GradingJan 12, 2026
Peter Yantzer, Former Executive Director of AGS Labs, Dies at 77 Yantzer is remembered for the profound influence he had on diamond cut grading as well as his contagious smile and quick wit.
MajorsJan 12, 2026
These 14 Macy’s Locations Will Close This YearThe store closures are part of the retailer’s “Bold New Chapter” turnaround plan.
MajorsJan 12, 2026
Jewelers Mutual Acquires AI-Powered Event Insurance ProgramThrough EventGuard, the company will offer event liability and cancellation insurance, including wedding coverage.
MajorsJan 09, 2026
Kendra Scott Taps Activewear Exec as CEO Chris Blakeslee has experience at Athleta and Alo Yoga. Kendra Scott will remain on board as executive chair and chief visionary officer.
SurveysJan 09, 2026
U.S. Holiday Retail Sales Up 4%, Visa, Mastercard SayThe credit card companies’ surveys examined where consumers shopped, what they bought, and what they valued this holiday season.
CollectionsJan 09, 2026
Piece of the Week: Lionheart’s ‘Serenity’ Opal CharmThe “Serenity” charm set with 13 opals is a modern amulet offering protection, guidance, and intention, the brand said.
CollectionsJan 08, 2026
Pandora’s New ‘Bridgerton’ Jewels Celebrate Bees, Bows, and Blooms“Bridgerton” actresses Hannah Dodd and Claudia Jessie star in the brand’s “Rules to Love By” campaign.
Events & AwardsJan 08, 2026
Ana Khouri To Receive 2026 Gem Award for High Jewelry ExcellenceFounded by jeweler and sculptor Ana Khouri, the brand is “expanding the boundaries of what high jewelry can be.”
