Lab-Grown

AGTA Bans Lab-Grown Diamonds, Gemstones at GemFair

Lab-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.

AGTA logo
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 … 

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.” 

The Latest

The Retail Smiths partner and National Jeweler columnist Peter Smith 
ColumnistsJul 28, 2026
Peter Smith: Why Your Job Postings May Be Working Against You

Smith reveals the method The Retail Smiths use to help retailers and vendors write better job postings.

Tiffany & Co butterfly necklace
FinancialsJul 28, 2026
Tiffany & Co., Bulgari Lead the Way for LVMH in H1

LVMH’s jewelry and watch brands outperformed the company’s other divisions in an environment the company described as “disrupted.”

Lionheart Sacred Heart Charm Necklace
CollectionsJul 28, 2026
Lionheart’s New Collection Unites Spiritual Iconography

“Sacred Heart” features symbols like crosses, angel wings, the Star of David, and the evil eye as a representation of coexistence.

1872-x-1052-July-ad (1).png
Brought to you by
Why More Jewelry Retailers Are Hosting Turnkey Estate Buying Events

Retailers are seeking new ways to attract customers, increase traffic, and create revenue – Estate buying events are a popular solution.

Events & AwardsJul 28, 2026
The Edge Funding 2 Scholarships Via 24 Karat Club SEUS

The scholarships will go to early-career professionals looking to study gemology, bench work and jewelry design, or store operations.

Weekly QuizJul 23, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Mikimoto L'éclat high jewelry brooch
SurveysJul 27, 2026
Jewelry Leads Luxury Market Amid Stabilization, Bain Says

Bain & Company delved into the trends shaping the luxury market, the impact of AI, and more in its recent study.

Harvard Rubies Exhibit The Soul of Flame II Brooch by Austy Lee
SourcingJul 27, 2026
‘Rubies’ Goes on Display at Harvard Museum

The exhibition reveals the gemology, geology, and cultural history of the iconic red gemstone.

Brought-To-By-Article-Top-Image.jpg
Brought to you by
Wedding Band Trends 2026: Personalization Takes Center Stage

Colored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.

Stock image of shipping containers in port
Policies & IssuesJul 24, 2026
New Trump Tariffs: What They Mean for Jewelry

The new sweeping slate of tariffs impacts 60 countries, including India, China, Thailand, Hong Kong, and the United Arab Emirates.

Jorge Adeler Gods & Heroes coin pendant
TrendsJul 24, 2026
Amanda’s Style File: Ode to ‘The Odyssey’

From coin pendants to diamond shields, these old world-inspired jewels are the perfect accessory for an epic journey.

Courtney Leidy Amethyst Silk Cord Pendant
TrendsJul 24, 2026
Courtney Leidy’s Silk Cord Pendants Center Unexpected Pairings

Our Piece of the Week pairs a checkerboard-cut amethyst with an ivy green silk cord.

NJ Article image.png
PodcastsJul 23, 2026
Episode 7: Reinhold Jewelers on the Power of Relationships

Mildred Marcano Abrams and Yael Reinhold join the podcast to talk community connections, holiday plans, and preserving Reinhold’s legacy.

Trucks at De Beers’ Orapa mine in Botswana
SourcingJul 23, 2026
De Beers’ Production Jumps 88 Percent in Q2

Production also was up in the first half of 2026 but is expected to “substantially” decrease in H2 as two key mines undergo maintenance.

Silvia Furmanovich Enchapado en Tamo Wooden Wheat Straw Sun Earrings
CollectionsJul 23, 2026
Silvia Furmanovich’s New Collection Travels Back to the 1920s

“Art Deco” fuses ancestral techniques, rare materials, and modern perspectives as a tribute to the optimism and curiosity of the movement.

Sissy’s Log Cabin Saracen Casino
IndependentsJul 23, 2026
Sissy's Log Cabin Opens Casino Store

The jeweler’s newest store is inside Arkansas’ Saracen Casino Resort.

Kate Spade New York watches
WatchesJul 23, 2026
Movado Inks Licensing Deal With Kate Spade New York

The watch company will design, manufacture, and distribute Kate Spade New York watches.

Stock photo of loose polished diamonds
Policies & IssuesJul 22, 2026
Trump to Put 50% Tariff on Canadian Goods

The higher tax is set to go into effect in August and will apply to loose polished diamonds as well as precious and base metals jewelry.

Monica Rich Kosann Enchanted Garden Cherry Necklace
CollectionsJul 22, 2026
Monica Rich Kosann’s High Jewelry Is Fruitful

The “Enchanted Garden” series features a cherry, lemon, and pear that each hold a little secret inside.

Liljenquist new Rolex boutique McLean Virginia
IndependentsJul 22, 2026
Liljenquist Beckstead Opens Rolex New Boutique

It’s located in Tysons Galleria, an upscale shopping center in the Washington, D.C., metro area.

NY Now exhibitor booth
Events & AwardsJul 22, 2026
NY Now Returns in August Under New Ownership

The show, recently acquired by Rockview Management Group, will be held at New York City’s Javits Center from Aug. 2-4.

The Retail Smith Principal Partner and National Jeweler columnist Sherry Smith
ColumnistsJul 21, 2026
Sherry Smith: Shattering the Illusion of the ‘Either/Or’ Diamond Market

Smith offers retailers guidance on creating an environment where natural and lab-grown diamonds can both thrive.

Emerald logo
Events & AwardsJul 21, 2026
Apollo Funds Completes Emerald Acquisition

Former Emerald President and CEO Hervé Sedky has transitioned to the role of senior advisor.

Graff Seraphina Brooch and Lina Pendant
CollectionsJul 21, 2026
Graff’s New Butterfly High Jewelry Brooches Metamorphosize

The 12-piece capsule collection transforms from brooches to pendants.

Rough diamonds from De Beers’ Gahcho Kue mine in Canada
SourcingJul 21, 2026
Anglo Reportedly Selects Gareth Penny’s Consortium as Top Bidder for De Beers

A Botswana government official told lawmakers Anglo has selected The Global Diamond Consortium, an entity chaired by Penny, to buy De Beers.

Stock image of shipping containers
Policies & IssuesJul 20, 2026
Tariffs on Brazil to Increase But Rough Gemstones Exempt

The new tariff, imposed after a Trump administration study, is 25 percent and will stack on top of existing tariffs.

Vhernier Freccia High Jewelry Necklace
CollectionsJul 20, 2026
Vhernier Transforms ‘Freccia’ Collection Into High Jewelry

The collection from 2014 has been reinterpreted into high jewelry with its signature triangular-shaped elements.

Krista Collins Walters
MajorsJul 20, 2026
Krista Collins Walters Promoted to Publisher of Instore

She will also take on the role of vice president of jewelry for SmartWork Media, a newly created position.

×

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