Majors

Tiffany triumphant in Costco trademark case

MajorsSep 08, 2015

Tiffany triumphant in Costco trademark case

Tiffany & Co. has notched a huge legal victory, with a federal judge granting its motion for summary judgement and rejecting arguments that the term “Tiffany” has become generic.

New York--Tiffany & Co. notched a huge legal victory this week, with a federal judge granting its motion for summary judgement in its lawsuit against Costco and rejecting arguments that the term “Tiffany” has become generic. 

U.S. District Judge Laura Taylor Swain granted Tiffany’s motions for summary judgement on claims of trademark infringement and trademark counterfeiting on Tuesday while dismissing Costco’s counterclaim that the “Tiffany” mark has become generic. 

Tiffany filed a lawsuit against Costco nearly three years ago, accusing the Issaquah, Wash.-based retailer of confusing consumers by selling rings in its stores with signs identifying them as “Tiffany” even though they aren’t genuine Tiffany & Co. rings. 

Costco fired back with a counterclaim alleging that “Tiffany setting” had been in use so long that it had become a generic term that could be used to describe any setting comprised of multiple slender prongs extending upward from a base to hold a single gemstone. 

Costco asked the court to declare invalid Tiffany’s federal trademark registrations that prevent other retailers from using the term “Tiffany setting.” 

While the court agreed to hear arguments about the term “Tiffany” being generic in terms of ring settings, it ultimately found that Tiffany has “proffered uncontroverted evidence demonstrating the strength of its mark,” Tuesday’s ruling states.

The judge writes in her decision that the most significant evidence is a report by Bain & Co. that states that Tiffany “claims the largest share of the female mind in the U.S.” when it comes to name recognition in jewelry brands. 

While Costco argued that “the plain word Tiffany … is ‘weak’ in many ways,” it didn’t gather any reliable evidence to back up its assertion, court papers state. 

The ruling also notes that Tiffany interviewed six different consumers who had purchased rings labeled as Tiffany at Costco and found that they all thought they had a genuine Tiffany & Co. ring. One woman even cried when the diamond fell out of what she believed was a Tiffany ring, court papers state.

A jury will determine punitive damages in the case at a later date. 

Costco did not respond to request for comment on the ruling by deadline. 

Tiffany filed suit against Costco Wholesale Corp. on Valentine’s Day 2013. 

According to the original suit, a shopper at a Costco in Huntington Beach, Calif. first made Tiffany aware that Costco was selling rings marked as Tiffany.
From there, the New York-based retailer launched its own investigation and, according to the lawsuit, eventually discovered that for years Costco had been selling rings in its stores with signs reading “Tiffany” but not labeling them as such online. This was done so Tiffany wouldn’t find out about it via its normal trademark policing procedures, the lawsuit states.

In a company statement issued late Tuesday, Tiffany general counsel Leigh Harlan said, “We are gratified that the court found that Costco’s use of the Tiffany trademark infringed on our rights. We believe this decision further validates the strength and value of the Tiffany mark and reinforces our continuing efforts to protect the brand.” 
Michelle Graffis the editor-in-chief at National Jeweler, directing the publication’s coverage both online and in print.

The Latest

Movado Connect 2.0 watches
FinancialsNov 26, 2025
Movado CEO Talks Tariffs, Growing Interest in Accessible Luxury Watches

During its Q3 call, CEO Efraim Grinberg discussed the deal to lower tariffs on Swiss-made watches, watch market trends, and more.

Rosior Pumpkin Ring
TrendsNov 26, 2025
Piece of the Week: Rosior’s Pumpkin Ring

Rosior’s high jewelry cocktail ring with orange sapphires and green diamonds is the perfect Thanksgiving accessory.

Greenwich St. Jewelers Embrace Your True Colors Holiday Campaign
IndependentsNov 26, 2025
Greenwich St. Jewelers Launches Colorful Holiday Campaign

The “Embrace Your True Colors” campaign features jewels with a vibrant color palette and poetry by Grammy-nominated artist Aja Monet.

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.

Grandview Klein scholarships
Events & AwardsNov 26, 2025
Grandview Klein Presents 4 Scholarships in Namibia

The company gave awards to four students at the Namibia University of Science & Technology, including one who is a Grandview Klein employee.

Weekly QuizNov 20, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Margaret “Maggie” Hoisik
IndependentsNov 25, 2025
Pearl Stringer Margaret Hoisik Dies

She is remembered as an artist who loved her craft and was devoted to her faith, her friends, and her family.

Finestar manufacturing
SourcingNov 25, 2025
Finestar Opens Diamond Manufacturing Facility in Johannesburg

It joins the company’s other manufacturing facilities globally, including in India, Botswana, and Namibia.

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.

State Property Toadstool Pendant
TrendsNov 25, 2025
Amanda’s Style File: Polka Dots

The polka dot pattern transcends time and has re-emerged as a trend in jewelry through round-shaped gemstones.

Stock image of gavel and books
CrimeNov 25, 2025
Former Arizona AG Official Charged With Trafficking Stolen Jewelry

Vanessa Hickman, 49, allegedly sold a diamond bracelet that was mistakenly sent to her home.

GIA executives John Koivula, Kathryn Kimmel, Susan Jacques, Tom Moses, Alice Keller, James E. Shigley
Events & AwardsNov 25, 2025
GIA Awards Susan Jacques With Its Highest Honor

GIA’s former president and CEO was presented with the Richard T. Liddicoat Award for Distinguished Achievement.

20251124_MNQ social media etiquette header.jpg
Recorded WebinarsNov 24, 2025
Watch: Top Tips for Social Media Etiquette

Social media experts spoke about protecting brand reputation through behaving mindfully online.

Breitling house of brands
WatchesNov 24, 2025
Breitling Reveals Plans for Gallet, Universal Genève

In 2026, the three will come together as “House of Brands,” with Gallet sold in Breitling stores and Universal Genève sold separately.

Cynthia Erivo in Muse’s Have a Heart x Cynthia Erivo Collection
CollectionsNov 24, 2025
Muse Debuts a Wicked 'Have a Heart x Cynthia Erivo' Sequel

The second drop, which includes more Elphaba-inspired pieces from additional designers, will continue to benefit nonprofit Dreams of Hope.

J.R. Dunn Jewelers employees
IndependentsNov 24, 2025
J.R. Dunn Jewelers Names New President

Second-generation jeweler Sean Dunn has taken on the role.

Origin De Beers Group logo
SourcingNov 21, 2025
De Beers’ Branded, Traceable Diamonds Roll Out to 19 Retailers

Called “Origin by De Beers Group,” the loose, polished diamonds are being sold in a total of 30 stores in the United States and Canada.

Melissa Kaye Rocky Infinity Emerald Necklace
CollectionsNov 21, 2025
Piece of the Week: Melissa Kaye’s ‘Rocky Infinity’ Necklace

The lariat necklace features a 4.88-carat oval-cut Zambian emerald in 18-karat yellow gold.

Phillips auction of The Vanderbilt Sapphire brooch
AuctionsNov 20, 2025
Vanderbilt Jewels Shine at Phillips Sale, Pink Diamond Withdrawn

A 43-carat sapphire brooch from the Vanderbilt collection was the top lot of the Geneva sale.

Rebecca Rau Jewels Green Flame Necklace
CollectionsNov 20, 2025
Rebecca Rau Jewels Debuts With ‘Then & Now’ Collection

Rau is a fourth-generation art and antique dealer from M.S. Rau gallery whose first jewelry collection merges artifacts with modern design.

Purvi Shah
Policies & IssuesNov 20, 2025
RJC Names New Executive Director

Former De Beers sustainability leader Purvi Shah will take over the role in February 2026.

La Joux-Perret manufacturing facility in La Chaux-de-Fonds, Switzerland
WatchesNov 20, 2025
LVMH Takes Minority Stake in Citizen Group-Owned Movement Maker

La Joux-Perret is based in La Chaux-de-Fonds, Switzerland, and makes solar quartz as well as mechanical watch movements.

Julia Griffith
GradingNov 20, 2025
Julia Griffith Joins SSEF as Head of Education

She previously taught at Gem-A and is the founder of The Gem Academy.

Helena Bonham Carter in Larkspur & Hawk Once Upon a Time Campaign
CollectionsNov 19, 2025
Larkspur & Hawk Celebrates 25 Years With Helena Bonham Carter Campaign

The British actress and her daughter modeled pieces from the brand’s new “Palette” capsule for its “Once Upon a Time” holiday campaign.

Google reviews on a phone screen and a laptop
TechnologyNov 19, 2025
Google Has a New Form for Reporting ‘Review Bombing’ Attacks

Plus, the tech giant shares the steps retailers should take if they believe they’re a victim of a review extortion scam.

Shaftel Diamonds logo and jeweler’s bench
IndependentsNov 19, 2025
Houston Jeweler Keith Shaftel Retires, Next Generation Steps In

Danny and Gaby Shaftel are now Shaftel Diamonds’ CEO and chief operating officer, respectively.

Midas chain mini studs
TrendsNov 19, 2025
Midas Chain Releases 2025 Holiday Style Guide

The jewelry manufacturer’s seasonal offering features its new “Melodie” bangles, as well as mini stud earrings and layering pieces.

Jewelry from NYC Jewelry Week 2024
Events & AwardsNov 18, 2025
NYC Jewelry Week 2025: 12 Must-See Events

With more than 140 activations taking place in New York City now through Nov. 23, these 12 events are can’t-miss moments.

×

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