Auctions

Nancy Astor’s Cartier Tiara Heads to Auction

AuctionsMay 05, 2025

Nancy Astor’s Cartier Tiara Heads to Auction

The turquoise and diamond tiara hasn’t been on the market since it was purchased by Lord Astor in 1930.

Nancy Astor Cartier turquoise and diamond tiara
This turquoise and diamond tiara by Cartier, which belonged to American-born British politician Nancy Astor, is up for auction at Bonhams “London Jewels” sale next month.
London—Nancy Astor’s turquoise and diamond tiara by Cartier is going up for auction at Bonhams.

The tiara, circa 1930, is a highlight of the “London Jewels” sale, slated for June 5 at its Bond Street location.

The sale will be the first time the “exceptionally rare” tiara, owned by Nancy, Viscountess Astor (1879-1964), has appeared on the market since it was purchased by her husband Lord Astor in 1930, said Bonhams.

Born Nancy Witcher Langhorne in Danville, Virginia, the American-born British politician was the first woman to take her seat in Parliament, serving from 1919 to 1945.

She moved to England in 1905 and met American-born Waldorf Astor, 2nd Viscount Astor (1879-1952), on the same trip across the Atlantic from America. Her husband, the great-great-grandson of American fur magnate Jacob Astor, was also a member of Parliament and the proprietor of The Observer, a London Sunday newspaper.

The pair married in 1906 and moved into Cliveden, their estate in Buckinghamshire, England, gifted to them by Astor’s father.

Nancy Astor was a prominent hostess for the British elite while also advocating for temperance, welfare, education reform, and women’s rights in parliament.

Her turquoise and diamond tiara will be “the star of the sale,” said Jean Ghika, Bonhams global head of jewelry.

The tiara is set throughout with old brilliant, single, and rose-cut diamonds, with a principal old brilliant-cut diamond at the center and three fluted turquoise plumes set with brilliant and single-cut diamond stems. Each side of the tiara features a radiating fan-shaped turquoise panel design. 

The Cartier tiara has a pre-sale estimate of £250,000 to 350,000 ($332,300 to $465,300). 

 Related stories will be right here … 

“Cartier has long been recognized as the name behind some of the world’s most important jewels, and the Astor turquoise and diamond tiara dates to a period when Cartier London was at the height of their creative prowess,” said Ghika.

The design is “truly unique,” said Ghika, noting its distinctive plumes, leaves and scrolls carved in turquoise were inspired by Egyptian, Indian, and Persian motifs.

The French jeweler explored these motifs throughout the early 20th century, she said, and its Eastern-inspired jewels were “hugely fashionable.”

“With impeccable provenance and a compelling marriage of Western and Eastern influences in the design, the tiara is exceptionally rare, and we feel honoured to have the opportunity to present it for sale for the first time in nearly a century.”

Nancy Astor Cartier turquoise and diamond tiara
The tiara, seen here in a Cartier box, is “truly unique,” said Jean Ghika, Bonhams global head of jewelry.


The tiara was first recorded in the Cartier archives in 1929 when Cartier requested that English Art Works—the workshop within the 175 New Bond Street store that served as the main atelier for Cartier London—add the carved turquoise plumes and leaves to an existing diamond bandeau in 1930.

The completed tiara is listed in Cartier’s records in November 1930, said Bonhams, and was sold a month later to Viscount Astor.

In 1931, Lady Astor notably wore the tiara to the premiere of “City Lights” at the Dominion Theatre in London.

In the early 1930s, Lady Astor loaned the tiara to her sister Phyllis Langhorne Brand for a court presentation at Buckingham Palace.

Nancy's brother-in-law, the Hon. Robert Henry Brand, commissioned Cartier to produce a similar turquoise and diamond tiara in 1935.

The tiara belonging to Lady Astor’s sister is currently on display at the V&A museum’s Cartier exhibition.

Other highlights of the upcoming sale include a toi et moi ring set with a 2.05-carat fancy pink diamond and a 1.42-carat fancy bluish-green diamond. The pre-sale estimate is £180,000 to £250,000 ($239,300 to $332,300).

A Schlumberger for Tiffany & Co. diamond and gem-set leaves necklace, circa 1980, is also up for sale.

Schlumberger for Tiffany & Co. diamond and gold leaves necklace
A Schlumberger for Tiffany & Co. necklace featuring pavé-set diamond leaves, gold stems and bows, and a gem-set butterfly


The articulated collar features pavé-set diamond leaves entwined with gold stems, with gold bows throughout and a gem-set butterfly.

The signed piece has a pre-sale estimate of £40,000 to £60,000 ($53,200 to $79,800).

Another Cartier piece will also hit the auction block. The citrine and diamond clip brooch, circa 1930, features the oval “buckle” motif set with circular-cut citrines and old brilliant-cut diamond accents. The central pin is channel-set with calibré-cut citrines.

Cartier diamond and citrine buckle brooch
A Cartier “buckle” clip brooch set with diamonds and citrines


The signed piece has a pre-sale estimate of £15,000 to £20,000 ($19,900 to $26,600).

For more information on the auction, visit the Bonhams website.

The Latest

Brandee Dallow
SourcingJun 25, 2026
ICA Names Brandee Dallow as CEO

Dallow will lead the International Colored Gemstone Association, effective July 6.

SCAD Jewelers Mutual Studio exterior
EditorsJun 25, 2026
Out & About: How Jewelers Mutual, SCAD Are Tackling the Bench Jeweler Shortage

Senior Editor Lenore Fedow headed to Savannah to learn more about the 10-year, $10 million partnership between JM and the art school.

Mejuri Steel Collection Campaign Imagery
CollectionsJun 25, 2026
Mejuri Experiments With Steel

Its new capsule jewelry collection features gold-finished stainless steel pieces designed for a maximalist look without a luxury price tag.

Brought-To-By-Article-Top-Image.jpg
Brought to you by
Wedding Band Trends 2026: Personalization Takes Center Stage

Colored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.

Watches and Wonders 2027
Events & AwardsJun 25, 2026
Watches & Wonders Announces 2027 Dates

The week-long event in Geneva is slated for April 2027.

Weekly QuizJun 25, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
New Gem Legacy board members Annie Doresca, Mark Smelzer, Sara Yood
SourcingJun 25, 2026
Annie Doresca, Mark Smelzer, Sara Yood Join Gem Legacy Board

The three industry leaders bring financial, communications, and legal expertise to the nonprofit’s board of directors.

Smart Age CEO and National Jeweler columnist Emmanuel Raheb
ColumnistsJun 24, 2026
The Revenue Hiding Between Your Counter and Your Online Cart

Jewelers are missing out by not offering this one key add-on at the online point of sale, Emmanuel Raheb writes.

DCA-NJ-article-1872x1052-060826.jpg
Brought to you by
Building the Future of Jewelry Retail: DCA Expands Education, Leadership Development, and Workforce Solutions

DCA is preparing the next generation of professionals by supporting workforce development, leadership growth, and career advancement.

Hyacinth Charm on Hackmanite Bead Strand, Peach Opal Bead Strand, Hydrangea Charm on Aquamarine Bead Strand
CollectionsJun 24, 2026
Greenwich St. Jewelers, Jewel Boxing’s Latest Drop Is On-Trend

The fourth collaborative collection from the retailer and jewelry content creator focuses on gemstone charms and strands of colorful beads.

“Elements” bracelet best of show AGTA Spectrum 2025
Events & AwardsJun 24, 2026
AGTA Accepting Entries for Spectrum 2026

This year’s AGTA Spectrum & Cutting Edge Awards will feature two new categories.

Columbia Gem House alexandrite
SourcingJun 24, 2026
Columbia Gem House To Offer Alexandrite Melee Online

The collection features traceable alexandrite from Brazil in calibrated sizes that is sorted by grade.

Dhaval Raja
MajorsJun 24, 2026
CaratLane Names New Chief Sales Officer

Dhaval Raja has been appointed to the role.

Francesca Villa On the Road Collection Race On Brooch and Long Road Necklace
CollectionsJun 23, 2026
Francesca Villa Goes ‘On the Road’

The capsule collection looks to vintage trunk pins that echo the spirit of speed, freedom, and the mythology of the American road trip.

A group of Paraiba tourmalines, two of which are possibly from Ethiopia
SourcingJun 23, 2026
New Paraíba Tourmaline Source Reportedly Discovered in Ethiopia

SSEF issued a notice about the potential new source of the sought-after gemstone, citing “credible reports” from trade sources.

Etsy Shop Other Jeffs campaign on a truck
MajorsJun 23, 2026
Etsy Says ‘Shop Other Jeffs’ This Prime Day

As Amazon Prime Day kicks off, Etsy is encouraging shoppers to support small businesses.

Cole Winward
Events & AwardsJun 23, 2026
AGA Announces 2026 Scholarship Winner

Cole Winward is the recipient of 2026 AGA Gemological Scholarship.

NeverNot Feel The Rhythm Boombox Pendant
EditorsJun 22, 2026
15 Pieces of Jewelry That Brought Us Joy in Vegas

Whether they evoked nostalgia, wonder, or laughter, these jewels put a smile on our faces.

Picture from press conference in Basel for new trade show, Basilia
Events & AwardsJun 22, 2026
Plans Announced for New Trade Show in Basel

Scheduled for April 2027, Basilia will be the first watch and jewelry trade show held in Basel since the collapse of Baselworld in 2020.

Gem Awards 2027 Logo
Events & AwardsJun 22, 2026
Gem Awards Opens 2027 Nomination Period

Submissions for the milestone 25th annual Gem Awards will be accepted across three categories from now through July 31.

Engineer Master II Snoopy Flying Ace Ball watch
WatchesJun 22, 2026
Snoopy Inspires New ‘Flying Ace’ Ball Watch

The beloved beagle dons his aviator outfit for the new Engineer Master II Snoopy Flying Ace timepiece.

Almasika Le Cauri Endiamanté Drop Earrings
CollectionsJun 18, 2026
Michelle Obama Wears Almasika Earrings Symbolizing Feminine Power

She wore the “Le Cauri Endiamanté” earrings, our Piece of the Week, in the Obamas’ first dual portrait for the Obama Presidential Center.

Graphic for Episode 6 of My Next Question featuring Michelle Orman
PodcastsJun 17, 2026
Episode 6: Las Vegas 2026-Trends, Traffic, Broken Bathrooms

Couture’s Michelle Orman joins Amanda Gizzi and Michelle Graff for this special post-Market Week episode of My Next Question.

SSEF emerald with filler
GradingJun 17, 2026
SSEF Issues Warning on Refilled Emeralds

The lab is seeing emeralds with filler added post-testing enter the market, accompanied by reports that indicate little to no treatment.

Former Patek Philippe President Philippe Stern
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.

James Avery Schertz Texas storefront
MajorsJun 17, 2026
James Avery to Revamp In-Store Retail Experience

The Texas-based jeweler is gradually rolling out a new experience-forward layout in its stores.

Seattle Seahawks Championship Ring by Jason of Beverly Hills
MajorsJun 17, 2026
Seahawks’ Super Bowl Ring Blends Meaningful Design, Technical Craftsmanship

The Super Bowl LX champions were honored with diamond and blue sapphire rings by Jason of Beverly Hills.

Marianna Smirnova
Policies & IssuesJun 17, 2026
Community for Ethical Jewelry Names New Executive Director

Marianna Smirnova previously spent a decade working with the Responsible Minerals Initiative, in addition to other relevant roles.

×

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