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.

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.”
The Latest

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

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.

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

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

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


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

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

From educational programs, advocacy, and recent MJSA affiliation, Jewelers of America drives progress that elevates businesses of all sizes.

Founder Jim Tuttle shared how a dedication to craftsmanship and meaningful custom jewelry fueled the retailer’s double-digit growth.

The third-generation jeweler is remembered as a passionate creative with a love of art, traveling and sailboat racing.

JSA and Cook County Crime Stoppers are both offering rewards for information leading to the arrest of the suspect or suspects involved.

A buyer paid $25.6 million for the diamond at Christie’s on Tuesday. In 2014, Sotheby’s sold the same stone for $32.6 million.

Mercedes Gleitze famously wore the watch in her 1927 swim across the English Channel, a pivotal credibility moment for the watchmaker.

GIA is offering next-day services for natural, colorless diamonds submitted to its labs in New York and Carlsbad.

Tiffany & Co., David Yurman, and Pandora have launched holiday campaigns depicting their jewelry as symbols of affection and happiness.

The National Retail Federation is bullish on the holidays, forecasting retail sales to exceed $1 trillion this year.

Late collector Eddy Elzas assembled “The Rainbow Collection,” which is offered as a single lot and estimated to fetch up to $3 million.

At the 2025 World Series, the Los Angeles Dodgers’ Yoshinobu Yamamoto sported a custom necklace made by California retailer Happy Jewelers.

The brand’s seventh location combines Foundrae’s symbolic vocabulary with motifs from Florida’s natural surroundings.

The retailer also shared an update on the impact of tariffs on watch customers.

Pink and purple stones were popular in the AGTA’s design competition this year, as were cameos and ocean themes.

All proceeds from the G. St x Jewel Boxing raffle will go to City Harvest, which works to end hunger in New York City.

Courtney Cornell is part of the third generation to lead the Rochester, New York-based jeweler.

De Beers also announced more changes in its upper ranks ahead of parent company Anglo American’s pending sale of the company.

Former Signet CEO Mark Light will remain president of Shinola until a replacement for Ulrich Wohn is found.

Kindred Lubeck of Artifex has three rings she designed with Anup Jogani in Sotheby’s upcoming Gem Drop sale.

The company focused on marketing in the third quarter and introduced two new charm collections, “Pandora Talisman” and “Pandora Minis.”




















