GradingMar 26, 2024
IGI Announces Tech for ID’ing Lab-Grown Colored DiamondsLab-GrownApr 11, 2024
AGTA Bans Lab-Grown Diamonds, Gemstones at GemFair
Members can still sell lab-grown stones, it said, but only natural gems are allowed on the show floor.
On Wednesday, AGTA announced a new rule banning the display of loose gemstones or jewelry “comprising non-natural gemstones, ones that are man-made, synthetic, or lab grown,” at all of its shows, beginning with GemFair Tucson 2025.
Dallas—The American Gem Trade Association announced that, starting at Tucson next year, exhibitors will not be allowed to sell lab-grown diamonds or colored gemstones at the AGTA GemFair.
National Jeweler received a news release on AGTA’s decision via email Wednesday morning. The release also was posted on the AGTA website, though it had been removed by Wednesday evening.
AGTA CEO John W. Ford Sr. said the news release was “pulled by error,” and would be reposted today.
According to the release, AGTA’s new rule bans the display of loose gemstones or jewelry “comprising non-natural gemstones, ones that are man-made, synthetic, or lab grown.”
AGTA said its dealers can still sell lab-grown gems if they are disclosed, but only natural gems can be made available for purchase at GemFair.
The association said it enacted the ban to “thwart potential confusion,” confusion it sees happening in the lab-grown diamond industry and fears will affect the colored gemstone industry, even though lab-grown colored stones have been around for more than a century.
When asked what led to the belief that confusion was occurring, or could occur, in the colored gemstone market, Ford said in an email to National Jeweler, “Look no further than the chaos created by synthetics in the diamond industry … Our action is also in response to considerable concerns voiced by AGTA membership in relation to the adverse effects that synthetics could also potentially cause in the colored gemstone industry.”
While the AGTA’s decision has made headlines, it does not seem poised to have a big impact on AGTA GemFair exhibitors, few of whom sell lab-grown gemstones anyway.
In his email, Ford said out of the 260 exhibitors of loose or set gemstones at the 2024 AGTA GemFair Tucson, only two list that they sell synthetic gemstones in the AGTA Source Directory.
“Since sending out over (260) 2025 AGTA GemFair Tucson renewals, we’ve had an overwhelmingly positive response from the vast majority of our exhibitors, greatly outweighing any negative responses,” he said.
Related stories will be right here …
National Jeweler received a news release on AGTA’s decision via email Wednesday morning. The release also was posted on the AGTA website, though it had been removed by Wednesday evening.
AGTA CEO John W. Ford Sr. said the news release was “pulled by error,” and would be reposted today.
According to the release, AGTA’s new rule bans the display of loose gemstones or jewelry “comprising non-natural gemstones, ones that are man-made, synthetic, or lab grown.”
AGTA said its dealers can still sell lab-grown gems if they are disclosed, but only natural gems can be made available for purchase at GemFair.
The association said it enacted the ban to “thwart potential confusion,” confusion it sees happening in the lab-grown diamond industry and fears will affect the colored gemstone industry, even though lab-grown colored stones have been around for more than a century.
When asked what led to the belief that confusion was occurring, or could occur, in the colored gemstone market, Ford said in an email to National Jeweler, “Look no further than the chaos created by synthetics in the diamond industry … Our action is also in response to considerable concerns voiced by AGTA membership in relation to the adverse effects that synthetics could also potentially cause in the colored gemstone industry.”
While the AGTA’s decision has made headlines, it does not seem poised to have a big impact on AGTA GemFair exhibitors, few of whom sell lab-grown gemstones anyway.
In his email, Ford said out of the 260 exhibitors of loose or set gemstones at the 2024 AGTA GemFair Tucson, only two list that they sell synthetic gemstones in the AGTA Source Directory.
“Since sending out over (260) 2025 AGTA GemFair Tucson renewals, we’ve had an overwhelmingly positive response from the vast majority of our exhibitors, greatly outweighing any negative responses,” he said.
In its news release, AGTA also noted that lab-grown gemstones lack the value inherent to natural gemstones, which are rare and sometimes inimitable.
“AGTA felt that it needed to be crystal clear to buyers that when they attend an AGTA show, they know that they are only shopping mined natural gems from the earth,” said Kimberly Collins, AGTA board president and owner of Kimberly Collins Colored Gems.
“AGTA dealers pride themselves in sourcing superior gems that are rare, beautiful, and natural.”
AGTA also notes that “synthetic gems are not minerals.”
The association said it recognizes two definitions of the word “mineral”—that of the British Geological Survey, defining a mineral as “a naturally occurring substance with distinctive chemical and physical properties, composition, and atomic structure” and that of the U.S. Geological Survey, which defines a mineral as a “naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties.”
“The definitions are essentially the same, but the keyword in both that is important is use of the word ‘natural,’” said AGTA board member John Bradshaw.
“It’s important to indicate that synthetic gems are not considered minerals, because minerals are natural, and synthetics are not.”
Editors' Picks
Sponsored by
More on Lab-Grown
The Latest
IndependentsSep 29, 2026
Christy Bromberg, Longtime Gift Buyer for Underwood Jewelers, Dies at 68She is remembered for her joie de vivre, upbeat personality, genuine interest in other people, and love of the Alabama Crimson Tide.
AuctionsSep 29, 2026
Dionne Warwick’s Jewelry Goes Up for AuctionOnline bidding is open now for Julien’s sale of items owned by the “Walk On By” singer, whose final album comes out this fall.
Events & AwardsSep 29, 2026
Matt Stuller to Receive 2027 Gem Award for Lifetime AchievementThe founder and executive chairman of Stuller Inc. is being honored for his impact on the jewelry industry at the 25th annual Gem Awards.
Brought to you by
Meet Gemology’s Next Generation Microscope: GIA® Gemolite® NXT Professional EditionExperience gemstones with greater precision and comfort than ever before.
ColumnistsSep 29, 2026
Your Holiday Marketing Has a Bridal Blind SpotDecember is the most popular month to propose, and jewelers need to keep that in mind when planning their holiday marketing.
Weekly QuizSep 25, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
AuctionsSep 29, 2026
If You Love Cats, This Jewelry Auction Is for YouCat ladies of the jewelry world, unite. Sandy Lerner’s collection of cat jewelry and other objects is going up for auction Wednesday.
CollectionsSep 28, 2026
De Beers London Drops Water-Inspired High Jewelry Collection“Vibrations” features several firsts for De Beers’ high jewelry, including the use of chalcedony and diamonds sourced from artisanal miners.
Brought to you by
Your Piece Could Be the One Editors Talk AboutSubmit your pieces for a chance to win in this year's competition.
CollectionsSep 28, 2026
Jessica McCormack Turns to Classic Motif for New CollectionThe “Bows” collection features three interpretations of the bow motif designed with Georgian and Victorian influences.
Events & AwardsSep 28, 2026
Guy Borenstein, Troy Underwood Among the Professionals Honored at AGS Conclave 2026The American Gem Society recognized industry members, one Guild, and a law enforcement official for their contributions to jewelry.
FinancialsSep 28, 2026
Instappraise, Jewelers Mutual Look to Simplify Jewelry InsuranceThrough a new system integration, customers can now receive instant personal jewelry insurance quotes at the time of appraisal.
WatchesSep 25, 2026
Smaller Rolex Watches Showing Strength on Secondary Market, Data ShowsFive of the 10 fastest-appreciating Rolex models on Bob’s Watches were Datejust 31 or Lady Datejust watches.
MajorsSep 25, 2026
Sherwood Family Buys Back Daniel’s Jewelers from Private EquityThe Sherwood family and AJS Creations CEO Tejas Shah purchased the jewelry chain back from Palladium Equity Partners.
TrendsSep 25, 2026
A Peek at Taylor Swift’s Game-Day DiamondsThe artist wore Dana Rebecca Designs’ marquise diamond-set gold hoops at the Chiefs game last Sunday. Now they’re our Piece of the Week.
CrimeSep 24, 2026
From Conclave: Security Measures Jewelers Should Be TakingJSA and Jewelers Mutual shared advice on spotting suspicious behavior, combatting cell phone jammers, and staying safe at home.
AuctionsSep 24, 2026
8-Carat Blue Diamond Heads to UK Jewelry AuctionThe fancy light blue diamond is estimated to fetch up to $2.6 million at Elmwood’s next week.
TrendsSep 24, 2026
This New Jewelry Book Decodes the Secret Meaning in Victorian Jewelry“Secret Language of Victorian Jewelry” unveils the meaning behind the symbols, motifs, and gemstones used in Victorian-era jewelry.
TrendsSep 23, 2026
Holiday Diamond Jewelry Trends: Layered Looks, PersonalizationThis holiday season, look to pieces that will help to fill out customers’ everyday diamond jewelry wardrobe, experts say.
SourcingSep 23, 2026
Organization That Promotes Natural Diamond Rebrands for Third Time The Natural Diamond Council is now The Diamond Collective and has announced a new strategy under CEO Amber Pepper.
IndependentsSep 23, 2026
This Milwaukee-Area Jeweler Is Serving the 7CsPaul’s Jewelers sells coffee, chocolate, and cookies from a custom gold-wrapped trailer parked outside the store starting at 7 a.m.
MajorsSep 23, 2026
Kay Jewelers’ New Campaign Goes ‘All In’ on LovePart of its brand relaunch, the marketing around the campaign includes a contest involving a jacket set with 550 diamonds.
Events & AwardsSep 23, 2026
Tiffany & Co. Exhibition Opening at Arkansas Museum The curation, opening soon at the Crystal Bridges Museum of American Art, honors the jeweler’s heritage through a distinctly American lens.
CollectionsSep 23, 2026
Pucker Up for Pandora’s New Pat McGrath Jewelry CollabThe jewelry giant has partnered with the famed makeup artist to create a colorful new collection of charms and rings.
IndependentsSep 23, 2026
Texas Jewelers Association to Celebrate 120th AnniversaryThe association will mark the milestone at its convention next month.
IndependentsSep 23, 2026
Sissy’s Log Cabin’s ‘Back to School and Bling’ Event ReturnsThe jeweler donated school supplies to Memphis, Tennessee, students during the event combining basketball and mentorship.
MajorsSep 22, 2026
Foundrae’s Lawsuit Against Pandora Can Continue, Court RulesA federal judge denied Pandora’s motion to dismiss Foundrae’s claim for copyright infringement of its medallions.
