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

Mark and Candy Udell on stage at the 2026 Gem Awards
Events & AwardsMar 17, 2026
The Best Moments From the 2026 Gem Awards

Held just before the Oscars, the jewelry industry’s big awards show had its share of standout jewelry, gowns, and acceptance speeches.

Winter Tourmaline
SourcingMar 17, 2026
Cruzeiro Mine Debuts ‘Winter Tourmaline’

The Brazilian mine’s new collection features cabochons in soft, muted shades like silver and lilac.

Natalie Portman in Tiffany & Co. Jewelry
TrendsMar 17, 2026
Natalie Portman Is Tiffany & Co.’s New Ambassador

The Academy Award-winning actress stars in Tiffany & Co.’s latest commercial, which debuted Sunday night during the Oscars.

TopImageCrop.jpg
Brought to you by
Is This You? Every Jeweler Has This Problem; We Have the Solution.

Every jeweler faces the same challenge: helping customers protect what they love. Here’s the solution designed for today’s jewelry business.

Jean-Marc Duplaix
MajorsMar 17, 2026
Kering Establishes Jewelry Division, Appoints CEO

The organizational change follows Kering’s promise of a transformation after declining sales in 2025.

Weekly QuizMar 12, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Anne Hathaway and Rose Byrne
EditorsMar 16, 2026
2026 Oscars Jewelry: One Necklace After Another

Natalie Francisco rounds up the top Oscars jewels, including Rose Byrne’s Taffin necklace with a more than 20-carat yellow-brown diamond.

Tag Heuer CEO Béatrice Goasglas
WatchesMar 16, 2026
TAG Heuer Has a New CEO

Béatrice Goasglas has been with TAG Heuer since 2018. She is the first woman to head the 166-year-old, LVMH-owned watch brand.

dca-laptop.jpg
Brought to you by
DCA Enters a New Chapter in Jewelry Education

With refreshed branding, a new website, updated courses, and a pathway for growth, DCA is dedicated to supporting retail staff development.

Ben Bridge Jeweler Honolulu boutique
IndependentsMar 16, 2026
Ben Bridge Debuts New Honolulu Boutique

The store features the first in-store build for the jeweler’s in-house “Bella Ponte” bridal brand.

Bonhams fine jewelry Paris
AuctionsMar 16, 2026
Bonhams Paris To Offer Antique, Signed Jewels

The live fine jewelry auction will take place later this week, showcasing antique pieces, rare gemstones, and signed jewels.

Silvia Furmanovich Horse Mane Earrings, Cece Jewellery Underworld Triptych Necklace, Almasika Invictus Flower Brooch
CollectionsMar 13, 2026
A Trio of Jewels from the 3 Gem Award Nominees for Jewelry Design

Our Pieces of the Week honor the 2026 nominees for the Gem Award for Jewelry Design, Silvia Furmanovich, Cece Fein-Hughes, and Catherine Sarr.

Vera Wang
WatchesMar 13, 2026
Citizen, Vera Wang to Launch Watch Collection

The 24-piece watch collection is set to debut in spring 2027.

Andrea Pooler
SourcingMar 13, 2026
Andrea Pooler Joins Third-Generation Diamond Company as COO

Pooler, who has more than 25 years’ experience in jewelry, is now chief operating officer of Modani Jewels, Soham Diamonds, and SNJ Creations.

24 Karat Club banquet
MajorsMar 13, 2026
24 Karat Club of New York’s Banquet to Return to Waldorf Astoria

The reopening of the Waldorf Astoria means a homecoming for the industry group’s annual event, which will take place Saturday.

Zoë Kravitz in Jessica McCormack’s Planetary Necklace
CollectionsMar 12, 2026
Jessica McCormack Sends Gold, Gemstones Into ‘Orbit’

McCormack looked to the 19th century’s “golden age” of astronomy when designing her new celestial-themed collection.

Johnny Nelson Wins David Yurman Gem Award Grant Graphic
Events & AwardsMar 12, 2026
Johnny Nelson Wins David Yurman Gem Awards Grant

Nelson will be honored as the inaugural grant winner at the Gem Awards gala on Friday.

David Berdugo
TechnologyMar 12, 2026
Caratwise Launches, Names Former Signet Exec CEO

The new smart design software allows jewelers to configure, price, and confirm a custom engagement ring in real time for in-store customers.

Woman working at bruting machine, seal at new Grandview Klein factory in South Africa
SourcingMar 12, 2026
Grandview Klein Opens New Factory in South Africa

The 10,000-square-foot diamond manufacturing facility officially opened in late February and employs 50 people.

MJSA Education Foundation logo
Events & AwardsMar 12, 2026
MJSA ‘Future of Jewelry Making’ Scholarship Applications Open

The MJSA Education Foundation’s scholarships support students pursuing jewelry careers.

26.36 carat round brilliant cut
AuctionsMar 11, 2026
‘Spectacular’ 26-Carat Diamond Going Up for Auction in London

The largest white diamond to come to market in the U.K. in more than a decade, the VVS1, I-color stone is expected to top $1 million.

Cast Compass pendant
TechnologyMar 11, 2026
Cast Jewelry’s Rachel Skelly on Coming Back Online Only

Skelly shares her plans for reimagining the fine jewelry retailer she re-acquired after it faltered last year.

Pyrrha The Space Between Campaign
CollectionsMar 11, 2026
Pyrrha Highlights ‘The Space Between’ In New Collection

The collection takes inspiration from the emotional space between people, moments, and experiences.

Charles London, Mayer and Fran Udell, Mark and Candy Udell
IndependentsMar 11, 2026
From the Jazz Age to the Information Age: London Jewelers Turns 100

In 2026, the jewelry retailer is celebrating a milestone only a small percentage of family-owned businesses survive to see.

Virginia jewelers at charity ball
IndependentsMar 11, 2026
Virginia Jewelers Raise Nearly $30K for Children’s Hospital

The group of jewelers held a jewelry raffle in support of the Children’s Hospital of Richmond at VCU.

Stack of gold bangles on denim
FinancialsMar 10, 2026
Signet Jewelers’ Q4 Sales Fall Flat

The jewelry giant released preliminary results for the fourth quarter and full year on Monday, with final results slated to come next week.

Saks Fifth Avenue door sign
MajorsMar 10, 2026
Saks Global to Close 15 More Stores

The retailer also gave an update on its vendor partnerships.

Julianne Moore
TrendsMar 10, 2026
Messika Names Julianne Moore as Ambassador

The award-winning actress is the “epitome of modern allure,” the brand said.

×

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