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

Amber Pepper
MajorsNov 21, 2025
Natural Diamond Council Names New CEO

Amber Pepper’s main focus will be on digital innovation and engaging younger consumers.

Rough diamonds from the Gahcho Kue mine in Canada
SourcingNov 21, 2025
De Beers’ Branded, Traceable Diamonds Roll Out to 19 Retailers

Called “Origin by De Beers Group,” the loose, polished diamonds are being sold in a total of 30 stores in the United States and Canada.

Melissa Kaye Rocky Infinity Emerald Necklace
CollectionsNov 21, 2025
Piece of the Week: Melissa Kaye’s ‘Rocky Infinity’ Necklace

The lariat necklace features a 4.88-carat oval-cut Zambian emerald in 18-karat yellow gold.

Recipients Collage 2025 - NJ (1872 x 1050 px) (1872 x 1052 px).png
Brought to you by
Impacting Tomorrow Today

How Jewelers of America’s 20 Under 40 are leading to ensure a brighter future for the jewelry industry.

Phillips auction of The Vanderbilt Sapphire brooch
AuctionsNov 20, 2025
Vanderbilt Jewels Shine at Phillips Sale, Pink Diamond Withdrawn

A 43-carat sapphire brooch from the Vanderbilt collection was the top lot of the Geneva sale.

Weekly QuizNov 20, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Rebecca Rau Jewels Green Flame Necklace
CollectionsNov 20, 2025
Rebecca Rau Jewels Debuts With ‘Then & Now’ Collection

Rau is a fourth-generation art and antique dealer from M.S. Rau gallery whose first jewelry collection merges artifacts with modern design.

Purvi Shah
Policies & IssuesNov 20, 2025
RJC Names New Executive Director

Former De Beers sustainability leader Purvi Shah will take over the role in February 2026.

roseco-catalog.png
Brought to you by
Roseco Releases New Full-Line Catalog

Roseco’s 704-page catalog showcases new lab-grown diamonds, findings, tools & more—available in print or interactive digital editions.

WatchesNov 20, 2025
LVMH Takes Minority Stake in Citizen Group-Owned Movement Maker

La Joux-Perret is based in La Chaux-de-Fonds, Switzerland, and makes solar quartz as well as mechanical watch movements.

Julia Griffith
GradingNov 20, 2025
Julia Griffith Joins SSEF as Head of Education

She previously taught at Gem-A and is the founder of The Gem Academy.

Helena Bonham Carter in Larkspur & Hawk Once Upon a Time Campaign
CollectionsNov 19, 2025
Larkspur & Hawk Celebrates 25 Years With Helena Bonham Carter Campaign

The British actress and her daughter modeled pieces from the brand’s new “Palette” capsule for its “Once Upon a Time” holiday campaign.

Google reviews on a phone screen and a laptop
TechnologyNov 19, 2025
Google Has a New Form for Reporting ‘Review Bombing’ Attacks

Plus, the tech giant shares the steps retailers should take if they believe they’re a victim of a review extortion scam.

Shaftel Diamonds logo and jeweler’s bench
IndependentsNov 19, 2025
Houston Jeweler Keith Shaftel Retires, Next Generation Steps In

Danny and Gaby Shaftel are now Shaftel Diamonds’ CEO and chief operating officer, respectively.

Midas chain mini studs
TrendsNov 19, 2025
Midas Chain Releases 2025 Holiday Style Guide

The jewelry manufacturer’s seasonal offering features its new “Melodie” bangles, as well as mini stud earrings and layering pieces.

Jewelry from NYC Jewelry Week 2024
Events & AwardsNov 18, 2025
NYC Jewelry Week 2025: 12 Must-See Events

With more than 140 activations taking place in New York City now through Nov. 23, these 12 events are can’t-miss moments.

Lugano Diamonds Greenwich Connecticut store
MajorsNov 18, 2025
Lugano Diamonds Files for Bankruptcy, Looking for Buyer

The Chapter 11 filing follows the resignation of CEO Moti Ferder, who stepped down after an investigation into the company’s finances.

Kathleen Ryan Dreamhouse Bad Fruit sculpture
Events & AwardsNov 18, 2025
A Giant, Bejeweled Moldy Berry Is on Display in LA

The artwork is part of an exhibition featuring works by Kathleen Ryan, an artist known for her gemstone-studded rotting fruit sculptures.

Rough diamonds from the Gahcho Kué mine in Canada
SourcingNov 18, 2025
Another Diamond Company CEO Steps Down

Mark Wall, president and CEO of Canadian mining company Mountain Province Diamonds, will vacate his position next month.

Suspects in murder of father and son jewelers in Chicago
CrimeNov 17, 2025
Police Searching for 2 Suspects in Murder of Father, Son Jewelers

Faustino Alamo Dominguez and his son, 25-year-old Luis Angel Alamo, were gunned down following an armed robbery at their jewelry store.

Jeffrey Bennett
GradingNov 17, 2025
IGI Announces New President of North America

Tiffany & Co. veteran Jeffrey Bennett has stepped into the role.

Robbins Brothers Pasadena store exterior
MajorsNov 17, 2025
Look Inside Robbins Brothers Fine Jewelers’ New Pasadena Flagship

The showroom is located in a historic 1920s building in the Playhouse District.

Rolex Perpetual 1908 watch with 18-karat yellow gold bracelet
Policies & IssuesNov 14, 2025
U.S., Switzerland Reach Deal That Drops Tariff to 15%

The Swiss government announced the deal, which cuts the tax on Swiss imports by more than half, on social media Friday morning.

Napoleon Bonaparte diamond brooch
AuctionsNov 14, 2025
Napoleon’s Diamond Brooch Blows Away Auction Estimates

A buyer paid $4.4 million for the piece, which Napoleon wore on his hat for special occasions and left behind when he fled Waterloo.

Buccellati Étoilée earrings
FinancialsNov 14, 2025
Richemont’s Q2 Jewelry Sales Up 12%

Plus, how tariffs and the rising price of gold are affecting its watch and jewelry brands.

Silvia Furmanovich x Mellerio Butterflies in Flight Jewelry Box
CollectionsNov 14, 2025
Piece of the Week: Silvia Furmanovich’s ‘Butterflies in Flight’ Jewelry Box

Furmanovich designed the box to hold Mellerio’s “Color Queen,” a high jewelry collection consisting of 10 rings.

JCK Las Vegas trade show
Events & AwardsNov 14, 2025
JCK Names New Event Director

Jennifer Hopf, who has been with JCK since 2022, will lead the execution of the long-running jewelry trade show.

Adler’s Jewelry storefronts New Orleans
IndependentsNov 13, 2025
127-Year-Old New Orleans Jeweler to Close

Adler’s Jewelry is set to close its two stores as 82-year-old owner Coleman E. Adler II retires.

×

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