CollectionsApr 02, 2025
Bea Bongiasca’s ‘Tarallo’ Collection Expansion Is a ZooThe pieces in “Animali Tarallo” portray animals from stingrays to elephants through portraits and interpretations of their patterns.
GradingAug 06, 2020
GIA Will Start Using Artificial Intelligence for Diamond Clarity Grading
The system is currently being tested in New York and Carlsbad, with an industry-wide rollout expected next year.
The image on the left, shot using GIA-developed hardware, teaches IBM Research’s artificial intelligence software how to recognize inclusions and reflections in diamonds, as seen at right, enabling the AI system to clarity-grade diamonds. (©GIA)
New York—The Gemological Institute of America is boldly going where it has never gone before—into the realm of automated clarity grading for diamonds.
GIA announced last week that it is partnering with IBM to develop an artificial intelligence system for diamond clarity grading.
The lab is currently testing the system internally at its New York and Carlsbad, California facilities on stones that are 4 carats and under, with plans to expand it and start sending out stones that were clarity-graded using AI in 2021.
Pritesh Patel, GIA’s senior vice president and chief operating officer, said AI clarity grading works by feeding data sets—GIA has thousands of stones in its reference collection that are used as standards for the 4Cs—into the program, which then is used to train algorithms on how to grade diamonds for clarity.
It, essentially, learns how to look for certain types of inclusions, feathers, crystals, needles, etc., and what clarity grade those inclusions, or combinations of inclusions, equate to in a diamond.
Once the training is complete, the AI program will continue to follow that training, and GIA can feed it more data over a period of time so the system’s intelligence will continue to grow.
GIA Executive Vice President and Chief Laboratory and Research Officer Tom Moses said at this point, the AI clarity grading is still in the development stage, so the lab has its human graders checking its work.
In the future, though, the system will function on its own most of the time, with a goal of making grading faster, accurate and consistent, and expanding the technology to more diamond shapes, sizes and qualities.
“Ultimately, we believe in the vast majority of cases [human involvement] will not be necessary,” Moses said, though he notes there still will be “a set of eyes” on larger, more important diamonds.
Automated grading is not new for GIA.
Moses said it’s been part of GIA since the beginning, as lab founder Robert Shipley Sr.’s son, Robert Jr., helped the lab develop an instrument to support visual color grading in the 1940s.
Clarity grading, in fact, is the final one of the four Cs for which GIA is introducing an automated process; in an interview with JCKonline.com, Moses described it as “the last frontier” of automated diamond grading because of its complexities.
While grading clean stones, like VVS or VS diamonds, is fairly simple, clarity grading gets more complicated
Editors' Picks
Sponsored by
when stones are more included, Moses explained.
The system has to be able to identify multiple different inclusions and determine how much of an impact they have on the diamond’s grade.
He said so far, GIA is testing AI clarity grading on natural diamonds only but likely will use it for lab-grown diamonds as well.
As with any technology designed to do a job once performed by a human being, AI clarity grading brings with it the question of job cuts.
Moses said while the lab did have to lay off “some staff” due to COVID-19—GIA declined to release specific figures—overall, it’s not looking to use AI to reduce the number of trained people it has.
Instead, GIA wants to handle and process more diamonds, he said, and use technology to free up human capital to work on projects that are more intricate and involved, like treatment identification and lab-grown diamond research.
“How can we use some of this talent that’s unique to GIA to be more creative, to add more value?” Moses said. “What can we do to help increase consumer confidence?”
Patel called the lab’s trained staff a “critical part of the assets GIA has,” and said staff worldwide see the AI clarity grading system as a valuable tool.
He also noted the lab could start using IBM’s AI technology for future projects, including the connecting of physical assets to digital information.
“Innovation is going to continue to happen, and it’s going to accelerate at a much faster pace,” Patel said. “GIA is going to play a significant role in that innovation, in the grading space and around it.”
The system has to be able to identify multiple different inclusions and determine how much of an impact they have on the diamond’s grade.
He said so far, GIA is testing AI clarity grading on natural diamonds only but likely will use it for lab-grown diamonds as well.
As with any technology designed to do a job once performed by a human being, AI clarity grading brings with it the question of job cuts.
Moses said while the lab did have to lay off “some staff” due to COVID-19—GIA declined to release specific figures—overall, it’s not looking to use AI to reduce the number of trained people it has.
Instead, GIA wants to handle and process more diamonds, he said, and use technology to free up human capital to work on projects that are more intricate and involved, like treatment identification and lab-grown diamond research.
“How can we use some of this talent that’s unique to GIA to be more creative, to add more value?” Moses said. “What can we do to help increase consumer confidence?”
Patel called the lab’s trained staff a “critical part of the assets GIA has,” and said staff worldwide see the AI clarity grading system as a valuable tool.
He also noted the lab could start using IBM’s AI technology for future projects, including the connecting of physical assets to digital information.
“Innovation is going to continue to happen, and it’s going to accelerate at a much faster pace,” Patel said. “GIA is going to play a significant role in that innovation, in the grading space and around it.”
More on Grading
The Latest
MajorsApr 02, 2025
Neiman Marcus’ Dallas Flagship Will Remain Open, For NowParent company Saks Global said the iconic location will be open through the holiday season as it decides what to do with the space.
SourcingApr 02, 2025
Winston’s Collection of Natural Color Diamonds Now on Display in D.C. Ronald Winston, son of Harry Winston, donated the diamonds to the Smithsonian National Museum of Natural History in Washington, D.C.
Brought to you by
The Heart of the Industry: Giving Bench Jewelers the Recognition They DeserveBench jewelers spend years honing their skills, Jewelers of America’s Certification validates their talents.
Policies & IssuesApr 02, 2025
Jewelers of America to Hold Webinar on TariffsThe virtual event will take place April 7 at 3 p.m.
Weekly QuizMar 27, 2025
This Week’s QuizTest your jewelry news knowledge by answering these questions.
Events & AwardsApr 02, 2025
Punchmark to Host Client WorkshopThe educational event will take place in Charlotte, North Carolina, this May.
IndependentsApr 01, 2025
Bergman Jewelers in Omaha Closing After 137 YearsThe independent jeweler first opened its doors in 1888.
Brought to you by
Natural Diamonds Should Mean MoreNatural diamonds mean more than lab-grown, but when every cut is ideal, they all look the same. Customers want more—Facets of Fire delivers.
MajorsApr 01, 2025
QVC Group to Cut 900 Jobs in the U.S.The layoffs come amid the TV shopping channel’s efforts to restructure and focus on live shopping through social media.
Events & AwardsApr 01, 2025
U.S. Antique Shows Adds Fall Show in FloridaThe debut event will take place in Miami’s Coconut Grove neighborhood this fall.
Events & AwardsApr 01, 2025
TJS to Host Discussion on Jewelry Industry’s Labor ShortageThe roundtable will take place May 17 ahead of the trade show’s welcome dinner.
CollectionsApr 01, 2025
Monica Rich Kosann Says ‘Good Grief’ in Peanuts Jewelry CollectionThe “Peanuts x Monica Rich Kosann” collection features the comic strip’s classic vocabulary across 10 bracelet designs.
Recorded WebinarsMar 31, 2025
Watch: What Do We Mean When We Say ‘Recycled’ Gold?Three industry experts dive into the complexities of the material often marketed as an “ethical” alternative for metal in jewelry.
TrendsMar 31, 2025
Amanda’s Style File: Dripping in DiamondsDiamonds are not only one of the most prominent gemstones, but the birthstone for those born in April.
MajorsMar 31, 2025
Lashbrook Expands Into Luxury Golf Gifts With AcquisitionThe Utah-based company known for making wedding bands has acquired Doubloon Golf.
WatchesMar 31, 2025
Bulgari CEO Jean-Christophe Babin Will Also Head LVMH WatchesThe longtime luxury executive led one of LVMH’s watch brands, TAG Heuer, for 12 years before taking over Bulgari in 2013.
CrimeMar 28, 2025
2 Suspects Arrested in $1.7M Smash-and-Grab Robbery of NY Jewelry StoreAuthorities said the robbers fled with jewelry and 70 Rolex watches, later taking pictures of themselves posing with big stacks of cash.
SourcingMar 28, 2025
19th-Century Jade Book Now Available in EnglishLotus Gemology founder Richard W. Hughes has translated Heinrich Fischer’s 1880 book “Nephrit und Jadeit” from its original German.
CollectionsMar 28, 2025
Piece of the Week: Löf’s ‘The Valentine’ RingThe ring's design features contrasting lines influenced by work from architecture-inspired photographer Nikola Olic.
SurveysMar 27, 2025
Consumer Confidence Falls in March Amid ‘Gloomy’ OutlookThe Conference Board’s index fell as consumers continued to worry about the impact of tariffs, the labor market, and the price of eggs.
AuctionsMar 27, 2025
300-Year-Old Ring Linked to Witch Trial Judge Goes Unsold at Auction However, two medieval jewels surpassed estimates at Noonans Mayfair’s recent jewelry auction in London.
WatchesMar 27, 2025
Austin Butler Joins Breitling as Brand AmbassadorThe Oscar-nominated actor debuted in the campaign for the new “Top Time B31” collection, which introduced Breitling’s Caliber B31.
SourcingMar 27, 2025
Susan Jacques, Gaetano Cavalieri to Headline 2025 ICA Congress The Congress is scheduled to take place May 19-22 in Brasilia, Brazil.
IndependentsMar 26, 2025
Bailey’s Fine Jewelry Acquires Fellow NC Independent JewelerThe family-owned retailer is the new owner of Morrison Smith Jewelers in Charlotte, North Carolina.
WatchesMar 26, 2025
Bulova Celebrates 150th Anniversary With Art Deco WatchesThe “150 Art Deco” collection features a Miss America timepiece and a pocket watch from the brand’s Archive Series.
MajorsMar 26, 2025
QVC Group Appoints New PresidentAlex Wellen, formerly CEO and president of MotorTrend Group, has taken on the role.
Events & AwardsMar 26, 2025
Jewelers of America Announces New Funding Initiative The Impact Initiative is part of the nonprofit association’s new three-year strategic plan.
