CollectionsFeb 12, 2026
British Museum Raises $5M to Keep Jewel Linked to Henry VIII, Katherine of AragonIt is believed the 24-karat heart-shaped enameled pendant was made for an event marking the betrothal of Princess Mary in 1518.
MajorsApr 21, 2016
Tiffany Wins Challenge of LKI Diamond Inscription Patent
The U.S. Patent and Trademark Office’s appeal board has ruled that the two major claims in Lazare Kaplan’s patent for laser-inscribing diamonds are invalid.
Washington, D.C.--The U.S. Patent & Trademark Office ruled that two main sections of Lazare Kaplan International Inc.’s patent for laser-inscribing diamonds are invalid, the latest twist in LKI’s long-running legal battles over this patent.
Back in 2014, Tiffany petitioned the USPTO to do an inter partes review of LKI’s 2002 gemstone micro-inscribing patent. An inter partes review is a procedure that challenges the validity of a U.S. patent and is conducted by the Patent Trial and Appeal Board.
Tiffany’s request came amid a long-running legal battle between LKI and PhotoScribe Technologies Inc. over this same technology.
LKI alleged in a lawsuit filed in federal court in New York in 2006 that PhotoScribe was infringing upon its diamond inscription patent, and the case has seen numerous decisions and appeals over the past 10 years. It was stayed pending the board’s decision and any possible appeals that might follow.
In petitioning the appeal board, Tiffany, which is one of the many companies that uses PhotoScribe’s technology to etch serial numbers on its diamonds that are invisible to the naked eye, argued that LKI’s patent was invalid because it was “obvious,” court papers show, meaning that a person of “ordinary skill” in the art of micro-inscribing could have combined existing patents and teachings to arrive at the same invention.
On April 13, the board issued a 43-page written decision siding with Tiffany and stating that claims one and seven of U.S. Patent No. 6,476,351 belonging to Lazare Kaplan are un-patentable.
What the decision means for Tiffany is that it “can continue to use laser technology to inscribe unique and invisible-to-the-naked-eye serial numbers onto Tiffany diamonds,” the jeweler said in a statement released via one of its attorneys, Wes Musselman of Fish & Richardson.
The Patent Trial and Appeal Board’s decision can be appealed to the Court of Appeals for the Federal Circuit, though it was unclear at press time what LKI will do.
The company’s attorneys did not respond to request for comment on the decision and no one at LKI’s New York headquarters could be reached for comment Thursday morning.
Editors' Picks
Sponsored by
More on Majors
The Latest
SourcingFeb 12, 2026
‘Cotton Candy’ Necklace, 35-Carat Kunzite Win 2025 ‘Buyer’s Choice’ AwardsThe AGTA Spectrum and Cutting Edge “Buyer’s Choice” award winners were announced at the Spectrum Awards Gala last week.
Events & AwardsFeb 12, 2026
Kering Opens Entries for 2026 Sustainability-Focused AwardThe “Kering Generation Award x Jewelry” returns for its second year with “Second Chance, First Choice” as its theme.
Brought to you by
The MJSA Mentor & Apprenticeship Program: Attracting & Training the Next Generation of Bench JewelersLaunched in 2023, the program will help the passing of knowledge between generations and alleviate the shortage of bench jewelers.
TrendsFeb 11, 2026
Halle Berry’s Retro Engagement Ring Is a Sapphire-Set StunnerSourced by For Future Reference Vintage, the yellow gold ring has a round center stone surrounded by step-cut sapphires.
Weekly QuizFeb 12, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
CollectionsFeb 11, 2026
Zales Turns Sweethearts Into Jewelry for Valentine’s Day CollectionThe “Zales x Sweethearts” collection features three mystery heart charms engraved with classic sayings seen on the Valentine’s Day candies.
TechnologyFeb 11, 2026
Gemvision Symposium 2026 Slated for AprilThe event will include panel discussions, hands-on demonstrations of new digital manufacturing tools, and a jewelry design contest.
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.
Events & AwardsFeb 11, 2026
TJS Announces Roundtable, Launches New AppRegistration is now open for The Jewelry Symposium, set to take place in Detroit from May 16-19.
SourcingFeb 10, 2026
At Meeting in South Africa, Support for Natural Diamonds Picks Up Steam Namibia has formally signed the Luanda Accord, while two key industry organizations pledged to join the Natural Diamond Council.
TrendsFeb 10, 2026
Bad Bunny Wears Football-Shaped ‘Desert Diamond’ for Halftime PerformanceLady Gaga, Cardi B, and Karol G also went with diamond jewelry for Bad Bunny’s Super Bowl halftime show honoring Puerto Rico.
SurveysFeb 10, 2026
Shoppers to Spend Big on Jewelry This Valentine’s Day, Says NRFJewelry is expected to be the No. 1 gift this year in terms of dollars spent.
FinancialsFeb 10, 2026
Kering Plans Transformation as 2025 Sales Sink 13%As star brand Gucci continues to struggle, the luxury titan plans to announce a new roadmap to return to growth.
SourcingFeb 10, 2026
AGTA To Debut ‘Stuller Color of the Year’ Spectrum Awards CategoryThe new category asks entrants for “exceptional” interpretations of the supplier’s 2026 color of the year, which is “Signature Red.”
Policies & IssuesFeb 09, 2026
U.S., India Trade Deal One Step Closer to Being FinalizedThe White House issued an official statement on the deal, which will eliminate tariffs on loose natural diamonds and gemstones from India.
Events & AwardsFeb 09, 2026
JA Now Accepting Entries for 2026 CASE AwardsEntries for the jewelry design competition will be accepted through March 20.
IndependentsFeb 09, 2026
James Free Jewelers Unveils Revamped FlagshipThe Ohio jeweler’s new layout features a curated collection of brand boutiques to promote storytelling and host in-store events.
TrendsFeb 09, 2026
These 14 Jewels Will Melt Your Heart This Valentine’s DayFrom heart motifs to pink pearls, Valentine’s Day is filled with jewelry imbued with love.
CrimeFeb 06, 2026
Florida Man Sentenced After Selling Fake Native American Jewelry for a Decade Prosecutors say the man attended arts and craft fairs claiming he was a third-generation jeweler who was a member of the Pueblo tribe.
FinancialsFeb 06, 2026
Pandora’s North America GM Departs Amid Executive ChangesNew CEO Berta de Pablos-Barbier shared her priorities for the Danish jewelry company this year as part of its fourth-quarter results.
TrendsFeb 06, 2026
Margot Robbie, Jacob Elordi Wear Matching Cece Jewellery Signet RingsOur Piece of the Week picks are these bespoke rings the “Wuthering Heights” stars have been spotted wearing during the film’s press tour.
MajorsFeb 05, 2026
Pandora to Begin Selling Platinum-Plated JewelryThe introduction of platinum plating will reduce its reliance on silver amid volatile price swings, said Pandora.
SourcingFeb 05, 2026
De Beers Lowers Production Guidance for 2026, Anglo Mulls Another WritedownIt would be the third impairment charge in three years on De Beers Group, which continues to grapple with a “challenging” diamond market.
IndependentsFeb 05, 2026
Borsheims to Undergo Massive Renovation in the Spring The Omaha jewelry store’s multi-million-dollar renovation is scheduled to begin in mid-May and take about six months.
CollectionsFeb 05, 2026
Marco Bicego’s Amethyst Collection Travels to a Purple ParadiseThe “Paradise Amethyst” collection focuses on amethyst, pink tourmaline, garnet, and 18-karat yellow gold beads.
FinancialsFeb 05, 2026
Watches of Switzerland Reports Strong Holiday Results in Q3The retailer credited its Roberto Coin campaign, in part, for boosting its North America sales.
ColumnistsFeb 04, 2026
January Jewelry Sales: More Dollars Spent, Fewer Units Sold Sherry Smith unpacks independent retailers’ January performance and gives tips for navigating the slow-growth year ahead.
