CrimeAug 05, 2025
Report: Suspect Arrested in 1992 Murder of Miami JewelerOmar Roy, 72, was arrested in connection with the murder of jeweler Dionisio Carlos Valladares.
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.
More on Majors
The Latest
CollectionsAug 05, 2025
Mignon Faget Commemorates 20th Anniversary of Hurricane KatrinaThe New Orleans-based brand’s “Beyond Katrina” jewels honor the communities affected by the storm.
ColumnistsAug 05, 2025
The PR Adviser: Affiliate Marketing Is the Cost of CoverageLilian Raji explains why joining an affiliate network is essential for brands seeking placements in U.S. consumer publications.
Brought to you by
Taking the Moment Head On: How Rio Grande Champions the Present & Future of Fine JewelryAs a leading global jewelry supplier, Rio Grande is rapidly expanding and developing new solutions to meet the needs of jewelers worldwide.
Events & AwardsAug 05, 2025
JA Announces Seymour & Evelyn Holtzman Bench Scholarship WinnersThe organization has awarded a total of $42,000 through its scholarship programs this year.
Weekly QuizJul 31, 2025
This Week’s QuizTest your jewelry news knowledge by answering these questions.
Events & AwardsAug 04, 2025
Gem Awards, David Yurman Introduce $50K Grant for Emerging DesignersThe winner of the inaugural David Yurman Gem Awards Grant will be announced live at the 2026 Gem Awards gala.
TrendsAug 04, 2025
Amanda’s Style File: August’s Bright BaublesAs summer winds down, celebrate the sunny disposition of the month’s birthstones: peridot and spinel.
Brought to you by
Investing in the Next Generation of Bench JewelersThe Seymour & Evelyn Holtzman Bench Scholarship from Jewelers of America returns for a second year.
CrimeAug 04, 2025
‘The Watch King’ Assaulted, Robbed in QueensMoshe Haimoff, a social media personality and 47th Street retailer, was robbed of $559,000 worth of jewelry by men in construction outfits.
MajorsAug 01, 2025
Jewelers Mutual Names Mike Alexander as President The insurance company’s previous president and CEO, Scott Murphy, has split his role and will continue as CEO.
SourcingAug 01, 2025
Gemfields’ Auction Revenue Drops 50% in H1The nearly six-month pause of operations at its Kagem emerald mine earlier this year impacted the miner’s first-half results.
CollectionsAug 01, 2025
Piece of the Week: Hernsdorf’s ‘Tears of Aphrodite’ NecklaceThe necklace uses spinel drops to immortalize the moment Aphrodite’s tears mixed with her lover Adonis’ blood after he was fatally wounded.
SourcingJul 31, 2025
De Beers Records $189M First-Half Loss The diamond miner and marketer warned last week that it expected to be in the red after significantly cutting prices in Q2.
Events & AwardsJul 31, 2025
These Are the 2025 CASE Award WinnersJewelers of America’s 35th annual design contest recognized creativity, artistry, style, and excellence.
IndependentsJul 31, 2025
Matthew Tratner Takes Over as CBG President Tratner succeeds Andie Weinman, who will begin stepping back from the buying group’s day-to-day operations.
Policies & IssuesJul 30, 2025
Tariff on India Will Be 25%, Trump Says The president made the announcement via Truth Social Wednesday, adding that India also will face a penalty for its dealings with Russia.
FinancialsJul 30, 2025
Kering's Jewelry Brands Resilient As H1 Sales Slide 16%The luxury titan’s star brand Gucci continued to struggle amid a "tough" environment.
WatchesJul 30, 2025
Peek Inside Zadok Jewelers’ New Rolex Showroom in AustinIts opening marks the completion of the retailer’s new 11,000-square-foot store in the Texas capital.
SurveysJul 30, 2025
Consumer Confidence Ticks Up in JulyRespondents shared concerns about tariffs and commentary on the “Big Beautiful Bill.”
SourcingJul 30, 2025
Rob Bates to Release Latest Book in His ‘Diamond District Mystery’ Series“Making a Killing in Diamonds” tells the story of Mimi Rosen, the disappearance of a scientist, and the murder of lab-grown diamond CEO.
EditorsJul 29, 2025
Out & About: Visiting Tacori’s Design Studio in LASenior Editor Lenore Fedow learned a lot when she took a behind-the-scenes factory tour with the jewelry brand earlier this year.
Events & AwardsJul 29, 2025
Melee The Show Welcomes 15 New DesignersThe first-time exhibitors, set to debut at the New York City show, share a devotion to craftsmanship, storytelling, and material integrity.
SourcingJul 29, 2025
Auctim to Offer 7.3M+ Carats of Rough EmeraldsThe online auction house’s September sale will feature rough Brazilian emeralds of various qualities.
MajorsJul 29, 2025
Alexis Padis Re-Elected AGS Board President She’ll lead an executive committee consisting of President-Elect Bryan Moeller, Mitchell Clark, Bill Farmer, and Larry Rickert.
Policies & IssuesJul 28, 2025
U.S.-EU Come to Agreement on Tariffs Announced Sunday, the deal will set the tax on goods imported into the United States from the European Union at 15 percent.
CollectionsJul 28, 2025
Nanis Brings a New Palette to ‘Ipanema’A new edition of the Italian brand’s “Ipanema” collection has debuted with gemstones that evoke Brazil’s breathtaking views.
MajorsJul 28, 2025
The 1916 Company Partners with ‘Shark Tank’ Star’s Watch Insurance PlatformThe retailer will refer its customers to WonderCare, founded by venture capitalist and watch collector Kevin O’Leary.
