AGS Labs Opens Lab-Grown Diamond Grading Reports to the Industry
The move comes after a year-long pilot program.

The lab announced last August it would once again offer grading reports for lab-grown diamonds, a service it offered until 2013 but then stopped due to a lack of demand, Executive Director Jason Quick told National Jeweler last year.
It began the service again with a few select clients, but the test period has reached its conclusion, AGS said, noting the service is now open to everyone.
The Laboratory-Grown Diamond Grading Report is the result of more than a year of research and development to create one that aligns with AGS Labs’ mission of consumer protection and ensures consumers understand what they’re getting, it said.
It features details on the diamond’s growth method, cut, color, clarity, shapes, and measurements, as well as two laser inscriptions to act as a unique identifier.
AGS is using the standard color and clarity grading scales for lab-grown diamonds but adding “LG” (for “laboratory-grown”) to the grades to distinguish the grading from natural diamonds while also providing a basis for comparison, Quick said.
For example, a lab-grown diamond could receive an “LG-D” color grade and an “LG-VS1” clarity grade.
The reports also will contain the following statement: “It is important to note that the color and clarity grades do not reflect the rarity of a laboratory-grown diamond, but rather the quality and consistency of the manufacturing process.”
The reports also offer the standard AGS 0 to 10 cut-grade scale, including the AGS Ideal cut grade, but does not utilize the “LG” designation used for color and clarity.
The report comes in a digital format, though a printed copy can be requested, and is a component of Only My Diamond for lab-grown diamonds, an interactive online tool featuring additional educational information, including a special section on the 4Cs of man-made diamonds.
AGS Laboratories also launched a proprietary lab-grown diamond grading report, which can be customized to include a client’s brand and logo.
“We tested our program successfully over the course of the past year and are thrilled we can now offer this special report to the industry at large,” Quick said in a press release about the news.
“We’d like to thank the clients who participated in the tests: Altr, Ada Diamonds, and Lumex. Because of them, we feel wholly confident in our official launch of the Laboratory-Grown Diamond Grading Report, which provides consumers with a detailed assessment of their diamond’s quality.”
For more information about the new service, visit AmercanGemSociety.com.
The Latest

Couture’s Michelle Orman joins Amanda Gizzi and Michelle Graff for this special post-Market Week episode of My Next Question.

The third generation of the Stern family to head Patek Philippe, he navigated the “quartz crisis” and preserved the brand’s independence.

The Texas-based jeweler is gradually rolling out a new experience-forward layout in its stores.

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

The Super Bowl LX champions were honored with diamond and blue sapphire rings by Jason of Beverly Hills.


Marianna Smirnova previously spent a decade working with the Responsible Minerals Initiative, in addition to other relevant roles.

The New York Knicks took home the Larry O'Brien Trophy crafted by Tiffany & Co.

DCA is preparing the next generation of professionals by supporting workforce development, leadership growth, and career advancement.

Associate Editor Natalie Francisco lists the trends she spotted during Jewelry Market Week that will dominate the second half of 2026.

Its app now reflects increased prices for Mozambique ruby, as well as changes to its Burma ruby charts.

The manufacturer has tapped Alicia Arnold, the former director of custom design at Tiny Jewel Box.

The revamped, elevated space will feature a two-story Patek Philippe atelier and a rooftop patio for parties.

The special-edition piece marks the 140th anniversary of the iconic beverage brand.

Here are 13 small charms to inspire your layered looks this summer.

Found by a metal detectorist, the ring likely belonged to a wealthy, possibly royal, owner, said Noonans.

Our Pride Month Piece of the Week, the “Margaux” ring, is part of the wife-and-wife team’s new “Lovestoned” collection.

The group has named the keynote speaker and announced a new pavilion for its next event, which is slated for September.

From lions and hippos to snails and fish, Senior Editor Lenore Fedow wrangles her picks for cutest jewelry critters in Las Vegas.

The big stone will be fashioned into a 20.26-carat diamond in celebration of the retailer’s 100th anniversary this year.

Marie-Laure Cérède will join Chanel as the new director of its jewelry creation studio, starting in October.

At the JCK show, the lab-grown diamond brand teamed up with Jewelers for Children to support Make-A-Wish India.

Ilana McCabe is Signet’s vice president of public relations and brand communications.

It was a banner day for blue gemstones, with another blue diamond topping $8 million and a 41-carat sapphire going for $2.3 million.

The approval means the retailer is on track to exit bankruptcy proceedings this summer.

The men are believed to be part of the group of several masked suspects that robbed Marc Robinson Jewelers in April.

The bridal-focused brand is also launching its Custom Atelier this summer, a digital custom design tool for its authorized retailers.

The De Beers Group CEO also discussed tariffs, Desert Diamonds, and the pending sale of De Beers in an interview with Michelle Graff.

























