Majors

In Tiffany vs. Costco, the battle’s just begun

MajorsJan 29, 2014

In Tiffany vs. Costco, the battle’s just begun

The judge’s latest ruling in its battle with Costco likely left Tiffany feeling a little blue. But the legal battle between these two retail giants over the term “Tiffany” in relation to engagement ring settings is still in its early stages, and no one side has a clear advantage.

013014_Tiffany-attorneys-article.jpg
Emily Miao, left, is a partner while Nicole E. Grimm is an associate at the Chicago-based law firm of McDonnell Boehnen Hulbert&Berghoff LLP. Both specialize in intellectual property law.

New York--Though it’s a company that makes its money selling in bulk, Costco likely is fine with notching legal victories in its battle with Tiffany & Co. one by one.

On Jan. 17, a federal judge ruled that Costco Wholesale Corp. could proceed to trial with its argument that the word “Tiffany” in the context of ring settings is now a generic term used to describe any solitaire diamond ring setting with six prongs and, therefore, is no longer a trademark.  

In her ruling, U.S. District Judge Laura Taylor Swain wrote that while none of the evidence presented by Costco is conclusive, it is “sufficient to frame a genuine factual dispute as to whether the terms ‘Tiffany’ and/or ‘Tiffany setting’ have a primarily generic meaning in the minds of members of the general public in the context of ring settings.” 

Tiffany originally filed suit against Costco in February 2013, charging the Issaquah, Wash.-based warehouse retailer with trademark infringement for selling engagement rings identified as “Tiffany” even though Tiffany has never sold its rings through Costco.

The win was an important one for Costco, but the battle between these two retail giants--both of which rank in the top 10 in U.S. fine jewelry sales--has only just begun, one Chicago attorney says. 

In a recent interview with National Jeweler, Emily Miao, a partner at McDonnell Boehnen Hulbert & Berghoff LLP in Chicago, and associate Nicole E. Grimm talked about the ruling’s impact on the case overall. 

Miao says it evens the odds in a case where Tiffany once held a very slight edge. It also brings to light a simple question: Was pursuing a lawsuit in Tiffany’s best interest?  

She says no. The New York-based jeweler issued a cease-and-desist letter, and Costco removed the offending signage that contained the word “Tiffany.” 

Tiffany, Miao says, should have left it that. “Essentially, they used a cannon to kill a fly when a flyswatter would have been enough,” she says. “Now they realize Costco is going to fight them. And they were not expecting Costco to put up this kind of fight.” 

Trial dates in the case will be set at the final pre-trial hearing, which is scheduled for June 27. 

National Jeweler: What is the significance of the judge’s latest ruling in the Tiffany vs. Costco case?
Emily Miao: She had ruled that Costco may proceed with its

counterclaim argument. This is Costco’s main defense. The decision indicates, at least from the judge’s point of view, that there is genuine dispute over whether the Tiffany mark might have become at least partly genericized with respect to engagement ring settings.

Costco’s evidence of genericism is enough to bring the issue to trial. The judge in this case is not going to allow Tiffany to get summary judgment on Costco’s counterclaim. This is what we would consider a win for Costco, at least for getting the main argument into trial.

Nicole E. Grimm: The case is going to go forward on this issue and it doesn’t get dismissed as Tiffany had asked. 

NJ: What is the next step in the case? Does Tiffany have the ability to appeal this decision? 
EM: What Tiffany can do is a file a request for reconsideration on their summary judgment motion asking to dismiss Costco’s counterclaim. But those type of reconsiderations requests are almost doomed. They will probably not prevail. 

NJ: Why are they usually doomed? 
EM: They are going to have to show the judge in this case what information she overlooked that was part of their original motion. If there was anything that was important that should have been seen, it would have been in that motion. They probably will not succeed.

Tiffany has until June 27 to file other motions. It can look for other issues and use that to file motions. It doesn’t mean they can’t do anything between now and when the trial occurs. 

NJ: How, in your eyes, does this decision impact the landscape of the case?
EM: It is a win for Costco in one sense, but the war has barely started. The decision, even though it was important for Costco, really doesn’t impact the case. [Costco’s] main defense is the genericism argument that they are making. The fact that the judge is allowing it to go to trial is important to Costco.

[But] the judge also said that the evidence that Costco presented of genericism is not conclusive. 

NJ: Where do you see this case heading?
EM: The case is going to be a trial by jury. It’s going to be really hard to predict how the jury will decide in this case. Tiffany is such a well-known, venerable brand. I think it would be hard to find anyone (for the jury) who hasn’t heard of Tiffany and thought about it in a positive way. 

[But] if Costco’s evidence of genericism is compelling then that would sway a jury as well. Tiffany is going to be put in a strange position in trying to differentiate between their own branded rings and Tiffany-style ring settings. It’s going to be tough. I am not exactly sure how Tiffany is going to deal with this issue.

NG: The judge is allowing the jury, essentially, to decide whether the term “Tiffany” and the term “Tiffany setting” is generic, even though Costco was only using the word “Tiffany” in its signage. 

The point of interest here is that the judge in the opinion found that there was a genuine dispute of fact as to whether the terms “Tiffany” and/or “Tiffany setting” have become generic for ring settings to the public, even though Costco’s use of the term “Tiffany setting” was never in dispute. Costco used the term “Tiffany” not “Tiffany setting” in the point-of-sale signs for its diamond engagement rings, which is what prompted Tiffany’s lawsuit.  

Tiffany argued in its reply to Costco’s counterclaim that: “The POS signs did not say ‘Tiffany Setting,’ and the counterclaim concerning that phrase was included for the improper purpose of deflecting public attention from what it was that [Costco] actually did.”  

However, in light of the judge’s recent opinion, and despite Tiffany’s arguments, a jury may have a chance to decide the meaning of both terms, instead of just the term “Tiffany.”

NJ: Are you fairly certain it will go to trial?
EM: Both sides have deep pockets. They can certainly fuel a battle. They are both well-funded corporations, both major players in their industries. I can’t see how this case is going to settle. I think they are just going to march through to trial.

I am surprised Tiffany allowed it to go this far. They’ve essentially jeopardized their trademark. They should have just chastised (Costco) for those advertisements. They launched a lawsuit just thinking that Costco wouldn’t fight that much. I think Tiffany was surprised.

NJ: Are you saying that a lawsuit wasn’t the best course of action for Tiffany in this situation? 
EM: Yes. I think they could have just done this with a warning letter or some sort of discussion. It didn’t have to be dealt with in a lawsuit. They (Tiffany) are probably very surprised by Costco’s reaction because Costco is going full-force with the lawsuit. And the fact that the judge did not dismiss their counterclaim is a win for Costco. 

But it’s not the end of the war. The war has just barely begun. 

NJ: Who will win?
EM: I would have said earlier 51 percent Tiffany, 49 percent Costco. Now with this motion being decided it’s about 50/50. It’s really now a battle between Tiffany and Costco to try to persuade the jury. It’s 50-50 and now it’s up to the jury.  

Michelle Graffis the editor-in-chief at National Jeweler, directing the publication’s coverage both online and in print.

The Latest

trend retail.jpg
PodcastsJan 12, 2026
The latest poscast

test

Screenshot from 2026-01-12 06-22-03.png
PodcastsJan 12, 2026
New podcast without sponsor

test

20210205_Alexia_Connellan_Gatsby_earrings.jpg
TrendsJan 12, 2026
New test Article

test article

trend ss21@2x.jpg
Brought to you by
new sponsored article

test

2019_De_Beers_rough_NEW_1.jpg
PodcastsJan 12, 2026
New sponsored podcast

test

Weekly QuizOct 03, 2024
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
MNQ FINAL - NJ web - 1872 x 1052 px.png
PodcastsJan 12, 2026
Introducing My Next Question, the Podcast

A monthly podcast series for jewelry professionals

Screenshot from 2025-12-31 12-03-28.png
PodcastsDec 31, 2025
Test new podcast post

Test new podcast post

Jewelers Mutual Group Cybersecurity
Brought to you by
Navigating Cybersecurity: Essential Guidance for Jewelers

From protecting customer data to safeguarding inventory records, it's crucial to learn how to tackle cybersecurity challenges.

MNQ - studio - screen -1920 x 1080.png
PodcastsDec 29, 2025
Molly Test Podcast Episode

This is the abstract for Molly Test Podcast Episode

image 169 (4 col).png
PodcastsDec 10, 2025
Podcast With Video

Podcast Without Video or Audio or Image

image 169 (4 col).jpg
Recorded WebinarsDec 04, 2025
New Recorded Webinar for tests

New Recorded Webinar for tests

User-Avatar-PNG-Picture.png
PodcastsDec 03, 2025
Test Article Title

test Abstract

20210204_Couture_show_shot.jpg
PodcastsDec 02, 2025
New podcast

test desc

Screenshot from 2025-12-05 13-54-41.png
PodcastsNov 27, 2025
Test Podcast With Video

Test Podcast With Video. New interview with Ada Lovelace.

Image for tests
PodcastsNov 25, 2025
Test New Podcast Post

Abstract for tests. New Podcast interview with John Lennon, Jimi Hendrix and Jim Morison.

National Jeweler columnist Peter Smith
ColumnistsOct 09, 2024
Peter Smith: 7 Things to Know When Selling Luxury

Ahead of the holiday season, Smith delves into the often subconscious reasons people buy luxury products for themselves or their loved ones.

Edgar Mitchell wearing Rolex watch on Apollo 14
AuctionsOct 09, 2024
Rolex Worn on Apollo 14 Mission Up for Sale

The GMT-Master “Pepsi” belonging to astronaut Edgar Mitchell is a standout in RR Auction’s online “Space Auction,” going on now.

Platinum Guild International training
MajorsOct 09, 2024
PGI Launches New Virtual Sales Training

Retail sales associates can access the video series on mobile to refresh their selling skills.

Gathering at Bharat Diamond Bourse for COVID vaccinations
Policies & IssuesOct 09, 2024
GJNRF: Reaching Out, Rebuilding Futures

For 25 years, India’s Gem & Jewellery National Relief Foundation has provided aid in the wake of war, natural disasters, and global crises.

Sotheby’s A Tsar’s Treasure: Ferdinand of Bulgaria
AuctionsOct 08, 2024
Sotheby’s Selling Jewelry That Belonged to a Bulgarian Tsar

The November auction will feature a collection of jewels owned by Ferdinand I, the first king of modern Bulgaria, and his family.

Rough diamonds mined at the Diavik Diamond Mine
SourcingOct 08, 2024
Rio Tinto Begins New Phase of Production That Will Extend Diavik’s Life

Commercial production has begun underground at the Canadian diamond mine’s A21 pipe.

Stock image of hand holding phone by keyboard
SurveysOct 08, 2024
What to Know About Online Shopping This Holiday Season

Deloitte and Adobe Analytics shared their insights on the season, from the retail sales forecast to the role of generative AI.

Sylvie and Uncommon Man Campaign
CollectionsOct 08, 2024
Sylvie Adds New Men’s Bands

The Texas-based jeweler collaborated with luxury clothing brand Uncommon Man on men’s bands designed with European influences.

Diamond on polishing wheel Venus Jewel India
SourcingOct 08, 2024
Is Current Diamond Industry Turbulence Shaping a ‘New Normal’?

Industry players have found ways to cope with market conditions while working to reshape themselves in the face of emerging realities.

Rio Tinto 2024 Beyond RareTM Tender Art Series
SourcingOct 07, 2024
Rio Tinto to Offer 76 Diamonds in 2024 Beyond Rare Tender

The sales event, in its second year, features a selection of rare diamonds from the miner’s Argyle and Diavik diamond mines.

Kristi Yamaguchi and Scott Heller
CollectionsOct 07, 2024
Olympian Kristi Yamaguchi Partners With Heller Jewelers on New Collection

A portion of the proceeds from the “Always Dream” collection will go to Yamaguchi's foundation, supporting early childhood literacy.

Hill & Co. logo
SurveysOct 07, 2024
Hill & Co.’s New ‘Business of Jewelry Report’ Is Out

The first in what is slated to be a series of in-depth reports from the consulting company, it focuses on shortening supply chains.

×

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