Auctions

Wife of Former Cartier Owner’s Jewelry Heads to Auction

AuctionsAug 31, 2017

Wife of Former Cartier Owner’s Jewelry Heads to Auction

The Danziger family, which owned the brand for four years, tapped Bonhams New York to sell the personal collection of Gigi Guggenheim Danziger next month.

20170830_Danziger-header.jpg
This Cartier necklace centers on three rectangular-shaped diamonds, weighing 1.92, 1.66 and 1.33 carats. The necklace is set throughout with round brilliant-cut diamonds. It could sell in the range of $30,000 to $50,000 at Bonhams New York next month.

New York--The wife of one of the former owners of Cartier Paris is auctioning off some of her jewelry, and she has tapped Bonhams New York to do it.

On Sept. 19, fine jewelry from the personal collection of Gigi Guggenheim Danziger will go under the hammer as part of the auction house’s Fine Jewelry sale, marking the first time the jewelry has appeared at auction.

The collection features 32 pieces of fine jewelry, including a number of signed Cartier pieces from the 1960s and 1970s, when the Danziger family owned Cartier Paris. The earliest lot dates back to 1957.


Edward and Gigi Guggenheim Danziger in Monte Carlo, circa mid- to late-1960s
Gloria (Gigi) Guggenheim Danziger was born in Cambridge, Ohio, to businessman Frederick Daniel Guggenheim (distant relation to the mining magnates) and Ethel May Lewison.

She attended Ohio State University from 1941 to 1944, majoring in education, and then moved to Atlanta and finally New York.

She met native New Yorker Edward J. Danziger at a society wedding in 1951. The two married later that year in Mexico and then went on to have two sons, Danny and James.

Edward and his brother, Harry Lee Danziger, were prolific film producers, creating more than 140 feature films in the 1950s and 1960s, as well as hundreds of hours of television. Then in 1958, the Danzigers acquired London’s Mayfair hotel, Grosvenor hotel and the Metropole hotel in Monte Carlo.

Ten years later, in 1968, the two brothers negotiated a secret deal to acquire Cartier Paris. As part of it, they also acquired Cartier shops in Monte Carlo, Cannes and Switzerland.

The Danziger family intentionally kept their ownership under wraps to maintain the Cartier name since the business, up until then, had been family-run.


During their four-year ownership of the brand, they expended the company’s footprint by opening Cartier stores in Hong Kong, Geneva and Munich. The family also traveled extensively around the world as its owners, but returned to America in 1977.

Edward died in March 1999 at the age of 89. Gigi now splits her time between Los Angeles and Palm Beach.

There will be 180 lots available overall at the Bonhams New York sale next month.

Aside from the Danziger collection, one of its highlights is a 16.90-carat step-cut diamond ring set with round brilliant-cut diamond shoulders. It’s expected to sell for between $1.6 million and $2.2 million.

The auction
also features a number of Kashmir sapphires, including an oval-shaped version, weighing 7.54 carats, set within a surround of round brilliant-cut diamonds, which is estimated at $375,000 to $575,000.

Meanwhile, a rare Australian black opal and diamond pendant/brooch also will hit the block. The 48.80-carat gem is set within old European-cut diamonds and is estimated to sell for between $200,000 to $300,000.


Another interesting lot is a diamond, emerald and ruby brooch, circa 1900, purchased at a garage sale in Ohio a number of years ago for $8--the second such lot to hit auction this year.

The owner’s daughter was at a jewelry store when she pulled it out and shared the story about how it came into their possession. To her surprise, she was told it was real.

Bonhams had it tested by the Gemological Institute of America, which confirmed the stones were gem quality.

The brooch features an old mine-cut diamond, D color, VS1 clarity, weighing 1.39 carats; a rectangular-shaped emerald originating from Colombia, weighing approximately 1.50 carats; and an oval-shaped Burmese ruby, weighing approximately 0.60 carat.

It has a pre-sale estimate of $20,000 to $30,000.

There also will be signed pieces from Harry Winston, Cartier, René Lalique and David Webb.

All lots in the Sept. 19 Fine Jewelry sale can be seen on Bonhams.com.
Brecken Branstratoris the senior editor, gemstones at National Jeweler, covering sourcing, pricing and other developments in the colored stone sector.

The Latest

Gemist new retailer offering
TechnologyMay 01, 2026
Gemist, Saban Onyx Partner on Retailer-Focused Customization Offering

Their partnership combines Gemist’s customization technology with Saban Onyx’s U.S.-based manufacturing capabilities.

Hand putting gas pump in car
SurveysMay 01, 2026
Consumer Confidence Inches Up in April Despite Rising Gas Prices

Respondents were concerned about the Middle East conflict and how it will impact their finances.

Tiffany & Co. Blue Book 2026: Hidden Garden Butterfly Diamond Necklace
CollectionsMay 01, 2026
A ‘Hidden Garden’ Emerges in Tiffany & Co.’s 2026 Blue Book

Our Piece of the Week, the “Butterfly” necklace, showcases a 7.02-carat oval diamond set between diamond, platinum, and 18-karat gold wings.

Antique Jewelry & Watch Show
Brought to you by
Discover Timeless Treasures: A Showcase of Antique Jewelry & Timepieces in Las Vegas

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

The Retail Smiths partner and National Jeweler columnist Peter Smith
ColumnistsApr 30, 2026
Peter Smith: A Sleazy Salesman and the Case for Regret Avoidance

Smith uses a comment he overheard in the grocery store to remind retailers that their job is to inspire buying behavior, not just sell.

Weekly QuizApr 30, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Claire’s new summer campaign
MajorsApr 30, 2026
Claire’s New Summer Campaign Is a Sensory Wonderland for Gen Alpha

“A Girl SMR at Claire’s” celebrates girlhood through the five senses with stacked jewelry, slime toys, scented accessories, and ASMR.

Police cars
CrimeApr 30, 2026
Masked Group Uses Hammers, Pepper Spray in Texas Jewelry Store Robbery

Officials are looking for a group that robbed Marc Robinson Jewelers at an outlet mall in Round Rock, Texas, in broad daylight on April 21.

lvajws image 1.jpg
Brought to you by
Las Vegas Antique Jewelry & Watch Show: Showcasing the Most Collectible Merchandise from Across the Globe

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

OAR26_NJ_bulletin_1872x1052_01.jpg
Supplier BulletinApr 30, 2026
OROAREZZO 2026: The B2B Event for Italian Excellence in Goldsmith, Jewelry and Silver Manufacturing

Sponsored by OROAREZZO International Jewelry Exhibition

Tiffany & Co. Mother’s Day email opt out
TechnologyApr 29, 2026
The Thought Process Behind the Mother's Day Email Opt-Out

Some retailers are taking a nuanced approach to marketing what can be a difficult holiday for many.

Dick Abbott
IndependentsApr 29, 2026
Dick Abbott to Retire From The Edge

The Edge has announced its new CEO, as well as a new partnership with an investment firm focused on founder-led software businesses.

The Venetia Diamond Mine in South Africa
SourcingApr 29, 2026
De Beers’ Production Rises, Market Remains ‘Challenged’

De Beers’ diamond production was up 17 percent in Q1, boosted by increased output at its mines in South Africa and Canada.

Stock image of money
Policies & IssuesApr 28, 2026
Tariff Refunds: How to File, What to Expect

Importers can submit claims now to receive money back for the IEEPA tariffs they’ve paid, with refunds expected to take up to 90 days.

Gregory's Jewelers storefront
IndependentsApr 28, 2026
This North Carolina Jeweler Is Passing the Torch

The owners of Gregory Jewelers in Morganton, North Carolina, are heading into retirement.

Doug Hucker
SourcingApr 28, 2026
Doug Hucker Retires From ICA

The colored gemstone industry leader is heading into retirement after four years as the association’s CEO.

Natural Diamond Council Chief Marketing Officer Susie Dewey
SourcingApr 28, 2026
NDC Hires Tapestry Exec to Head Global Marketing

Susie Dewey joins the Natural Diamond Council as its new chief marketing officer.

The Ocean Dream diamond
AuctionsApr 27, 2026
12 Years Later, the ‘Ocean Dream’ Diamond Resurfaces at Christie’s

The largest known fancy vivid blue-green diamond could fetch more than $12 million at its second auction appearance.

Smart Age Solutions CEO and National Jeweler columnist Emmanuel Raheb
ColumnistsApr 27, 2026
Stop Treating Mother’s Day Like an Afterthought

Emmanuel Raheb says jewelers need to start marketing early and make it easy for customers to pick a gift for mom.

Longnecker Jewelry storefront
IndependentsApr 27, 2026
Longnecker Jewelry Celebrates 30 Years

In honor of the milestone, the Nebraska jeweler has debuted Leslie & Co., its new in-house jewelry brand.

Jeff Corey
MajorsApr 27, 2026
JBT Re-Elects Jeff Corey as Board Chair

The trade organization, which held its annual elections earlier this year, also added five new board members.

Fourteen August Irene mom ring
SurveysApr 24, 2026
Mother’s Day 2026 Jewelry Spending to Top $7B, NRF Says

NRF’s annual survey found that 45 percent of consumers plan to purchase jewelry for a loved one this Mother’s Day.

TwentyFour Vault Locket
TechnologyApr 24, 2026
TwentyFour’s Digital-Age Locket Is a Virtual Vault

The “Vault” charm, our Piece of the Week, expands on the memories that can be stored in a locket by connecting to your phone.

Hamptons Jewelry Show exhibitors Maison Mèrenor, Jochen Leën, Studio Javo
Events & AwardsApr 24, 2026
Hamptons Jewelry Show to Return in July

The open-to-the-public luxury jewelry and timepiece show, in its second year, is slated for July 23-26.

Photos from Day’s Jewelers 2025 Mother’s Day campaign
IndependentsApr 23, 2026
Meet the Real Moms of Day’s Jewelers

The jeweler’s Mother’s Day campaign highlights the women who work there—mothers, grandmothers, women who want to be mothers, and dog moms.

National Jeweler - Supplier Bulletin - April 2026 - JMSS Graphic.jpg
Supplier BulletinApr 23, 2026
JM® Shipping Solution: Smarter Shipping for High-Value Goods

Sponsored by Jewelers Mutual

Woman wearing Charles & Colvard lab grown diamond jewelry
Lab-GrownApr 23, 2026
Charles & Colvard May Sell Assets for $1.5M

The proposed agreement follows the moissanite maker’s Chapter 11 bankruptcy protection filing last month.

John Jacob Astor IV’s Titanic pocket watch and a gold pencil case
AuctionsApr 23, 2026
John Jacob Astor IV’s Titanic Pocket Watch Fetches $1M

The Patek Philippe for Tiffany & Co. timepiece Astor brought aboard the ill-fated ship sold for double its estimate at a Freeman’s auction.

×

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