Lab-GrownAug 24, 2021
Lightbox Goes Larger With 2-Carat Lab-Grown DiamondsGradingSep 07, 2021
AGS Labs Opens Lab-Grown Diamond Grading Reports to the Industry
The move comes after a year-long pilot program.
A sample of AGS Labs’ “Laboratory-Grown Diamond Grading Report,” which is available to the whole industry now
Las Vegas—After a year-long pilot program, AGS Laboratories has opened its lab-grown diamond grading service to all members of the industry.
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.”
Related stories will be right here …
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.
More on Grading
The Latest
PodcastsApr 15, 2026
Episode 4: The Natural Diamond DilemmaSally Morrison and Mark Klein discuss De Beers’ first beacon in 16 years and the mistake the industry made with lab-grown diamonds.
MajorsApr 15, 2026
Spark Creations’ Randy McKenzie Dies at 72 McKenzie spent 45 years with Spark Creations and is remembered for being kind, dedicated, and hardworking.
WatchesApr 15, 2026
These Are the New Rolex Watches for 2026Rolex focused exclusively on the Oyster Perpetual this year, as the model is celebrating its 100th anniversary.
Brought to you by
Discover Timeless Treasures: A Showcase of Antique Jewelry & Timepieces in Las VegasGain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.
FinancialsApr 15, 2026
Kering’s Jewelry Shines in Q1, Gucci’s Struggle ContinuesThe luxury giant discussed the Middle East conflict and its transformation plans, hinting at a stronger jewelry presence in North America.
Weekly QuizApr 09, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
SourcingApr 15, 2026
Diamond Club West Coast Names 2026 BoardKalpesh Jhaveri was re-elected as president for a third year.
TechnologyApr 15, 2026
This Jewelry Brand’s Video Series Is Up for a Webby Award“Diamond Divas,” a social media reality series by Shahla Karimi Jewelry, is nominated in the “Best Social: Fashion & Beauty” category.
Brought to you by
Las Vegas Antique Jewelry & Watch Show: Showcasing the Most Collectible Merchandise from Across the GlobeGain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.
SourcingApr 14, 2026
De Beers Expands ‘Desert Diamonds’ Beacon Into BridalThe campaign seeks to reignite desire for natural diamond engagement rings by highlighting the “distinct character” of warm-toned diamonds.
FinancialsApr 14, 2026
LVMH’s Q1 Sales Sink 6% Amid Middle East ConflictPlus, how Saks Global’s bankruptcy affected the luxury giant’s first quarter.
SourcingApr 14, 2026
International Jade Summit to Return to MontereyPresented by Mason-Kay Jade, the summit, in its second year, will again be held during the Monterey Bay Jade Festival.
Events & AwardsApr 14, 2026
CBG Releases Details for Las Vegas ShowThe group has announced its lineup of speakers and a new “Rising Stars” pavilion.
CollectionsApr 13, 2026
Uniform Object’s New Jewelry Collection Centers on the ‘Carbon Form’The “Carbon Form” collection explores the contrast between high and low materials, using rubber cord alongside 18-karat gold and gemstones.
Events & AwardsApr 13, 2026
JA Accepting 2026 Impact Initiative ApplicationsThe program provides essential funding to organizations for projects that enhance the jewelry industry.
Events & AwardsApr 13, 2026
Couture Announces New Show in MiamiThe jewelry trade show is launching its first open-to-the-public event in Coconut Grove this November.
CrimeApr 13, 2026
JSA Offers Reward in Oregon Jewelry Store Armed RobberyJSA is seeking information about the gunpoint robbery of a Kay Jewelers location in Oregon’s Washington Square Mall.
WatchesApr 10, 2026
These Watches Have Increased in Value the Most Since 2018, Says Chrono24The top-performing watch models may be surprising, with Rolex and several popular pandemic-era picks notably absent from the top 20.
CollectionsApr 10, 2026
Ophelia Eve’s Toggle Pendant Holds Your SecretsThe “Scroll” toggle pendant, our Piece of the Week, opens to reveal a hidden message, mantra, or love letter written on washi paper.
ColumnistsApr 09, 2026
Jewelry Demand Isn’t Stronger, Prices Are Just Higher Jewelers who misinterpret the state of the jewelry market risk employing the wrong retail strategy, cautions columnist Sherry Smith.
MajorsApr 09, 2026
Tiffany & Co. Promotes Nathalie Verdeille to SVP, Chief Artistic OfficerIn her newly expanded role, she will continue to oversee the jewelry category, as well as watches, home, and accessories.
WatchesApr 09, 2026
Jacob & Co. Rolls Out Its Sequel to ‘The Godfather’ Musical Watch“The Godfather II” watch plays two melodies from the mob film’s score, “The Godfather’s Waltz” and “The Godfather Love Theme.”
Events & AwardsApr 09, 2026
JCK Announces Jesse Itzler as 2026 Keynote SpeakerOrganizers have also introduced the new JCK Talks Signature Series, as well as an offering of watch-focused workshops and lectures.
SourcingApr 09, 2026
AGA To Honor ‘Quiet Leadership’ With New AwardThe Alan Hodgkinson Medal recognizes gemologists who are consistently generous with their time and expertise.
WatchesApr 09, 2026
Oris Names New CEO, CFOThe Swiss watchmaker is changing up its executive leadership team as part of a restructuring.
CollectionsApr 08, 2026
Hearts On Fire Celebrates 30 Years By Asking a QuestionThe “What’s Your Signature?” campaign invites women to think about how they see themselves.
SourcingApr 08, 2026
Sale of 42-Carat Blue Diamond Gives Petra a Boost in Q3The big diamond’s sale added to the company’s revenue though the market remains “challenging” overall, particularly for smaller goods.
Events & AwardsApr 08, 2026
AGS Confluence Returns with AI, Sustainability SessionsRob Bates of The Jewelry Wire will also moderate a panel on the state of the jewelry industry during the virtual event.
