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.
Editors' Picks
Sponsored by
More on Grading
The Latest
Events & AwardsOct 30, 2026
Illuminating Carved Paraiba Pendant, Suite of Moonstones Wow at Spectrum AwardsSpectrum’s “Best of Show” honors went to a 101-carat Paraiba carved to look like Medusa that has a magnet-activated LED light.
TrendsOct 30, 2026
Edina Kiss’ Pendants Say ‘Eye’m Watching You’Our Halloween Pieces of the Week are four “Eye” pendants, each set with colorful gemstones.
MajorsOct 30, 2026
The RealReal Hires Former eBay Exec as New Chief Merchandising OfficerAlexis Hoopes expanded eBay’s “Authenticity Guarantee” program during her tenure.
Brought to you by
A Diamond Is Forever Launches 2026 Holiday Campaign Championing Natural DiamondsA Diamond Is Forever's holiday campaign reimagines natural diamond icons for a new generation celebrating individuality.
WatchesOct 29, 2026
Bucherer Opens Rolex Boutique in Washington StateThe Rolex-owned retailer’s new 4,700-square-foot store’s façade honors the Pacific Northwest’s evergreen forests.
Weekly QuizOct 29, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
TrendsOct 29, 2026
Amanda's Style File: All Treats, No Tricks Get into the Halloween spirit with this roundup of 13 spooky jewels.
MajorsOct 29, 2026
Gesswein Hires Longtime Bench Jeweler, Educator Ann CahoonCahoon was appointed strategic account and educational program manager at Gesswein, which recently joined Continental Buying Group.
Brought to you by
Open an Account, Get $50 Off Your First Order. No Code Needed.Built on Relationships. Refined by Craft.
MajorsOct 29, 2026
Amanda Seyfried Stars In Tiffany & Co.’s Holiday CampaignTiffany & Co.’s latest ambassador makes her debut in its “Love Is a Gift” holiday campaign.
EditorsOct 28, 2026
These Wicked Jewels Will Cast a Spell on YouFor her annual Halloween story, Senior Editor Lenore Fedow highlights bewitching jewels fit for a witch that go from day to unholy night.
CrimeOct 28, 2026
Man In Florida Who Swallowed Tiffany & Co. Earrings ConvictedJaythan Gilder was found guilty of robbery and grand theft after stealing and then ingesting nearly $800,000 worth of Tiffany & Co. jewelry.
SurveysOct 28, 2026
Consumer Confidence Up in October as Gas Prices EaseConsumer confidence remains on the long-term downward trend that’s persisted over the past few years, said a Conference Board economist.
MajorsOct 28, 2026
Stuller’s Holiday Campaign Lets the ‘Magic of the Moment’ ShineThe holiday campaign includes key jewelry trends, a curated holiday gift guide, and resources to help jewelers prepare for holiday shoppers.
SourcingOct 27, 2026
De Beers Celebrates the Holidays With New ‘Desert Diamonds’ CampaignThe “Icons” holiday campaign spotlights four classic diamond jewelry styles reimagined in “Desert Diamond” tones.
IndependentsOct 27, 2026
Solomon Brothers Acquires Mervis Diamond ImportersSolomon Brothers, which has three stores in the Metro Atlanta area, said it may continue to acquire other independent jewelers.
IndependentsOct 27, 2026
Gabriel & Co. Supports Charity Partner DKMS With Gala, New JewelsThe fine jewelry brand raised $2.3 million at its annual gala that supports the nonprofit’s fight against blood cancer and blood disorders.
Events & AwardsOct 27, 2026
JFC Announces 2027 ‘Facets’ HonoreesThe annual fundraising event is slated for June 6, 2027, at The Venetian Resort in Las Vegas.
CollectionsOct 26, 2026
Bliss Lau’s ‘Vantage’ Point Is the Hawaiian HorizonIn her “Vantage” collection, Lau explores heritage, identity, and inner strength through designs featuring blue-green Guatemalan jade.
MajorsOct 26, 2026
Tiffany & Co. Takes Consumers Behind the ScenesThe jeweler gave the public backstage tours of its flagship store and its design and innovation workshop as part of LVMH’s open house.
Events & AwardsOct 26, 2026
Support JFC’s ‘Monster Mash Challenge,’ If You DareVote for which jewelry professional should dress up as a monster to support Jewelers for Children’s annual Halloween fundraiser.
MajorsOct 23, 2026
PGI USA Set to Close at Year’s EndThe closure is part of a global restructuring that also includes PGI winding down its operations in Japan, South Korea, and Hong Kong.
SourcingOct 23, 2026
Rachel Chalchinsky’s ‘Survivor Tribute’ RingThe ring, our Piece of the Week, was designed by eight-year breast cancer survivor Rachel Chalchinsky of Color Source Gems.
TechnologyOct 23, 2026
JA Unveils New Website, LogoThe website offers enhanced member benefit access, industry directories, educational resources, a job board, and access to the MJSA Journal.
FinancialsOct 23, 2026
Kering’s Jewelry Sales Up Double Digits in Q3Boucheron and Pomellato had a strong third quarter, with Kering looking at jewelry as an increasingly important part of its portfolio.
CrimeOct 22, 2026
Jeweler Shot and Killed in His Suburban Cincinnati Store Tara Sinchuri was the owner of Everest Jewels in Fairfield, Ohio, and a father of three. He was found dead in his store on Tuesday.
MajorsOct 22, 2026
Neiman Marcus Has Gifts for the Jewelry Lover Who Has EverythingBespoke experiences from Buccellati and Verdura are on the retailer’s 2026 “Fantasy Gifts” list.
Events & AwardsOct 22, 2026
JIS Fall 2026 Reports Record-Breaking Attendance The number of participants at the fall show was up 12 percent.
