ColumnistsApr 30, 2026
Peter Smith: A Sleazy Salesman and the Case for Regret Avoidance Smith uses a comment he overheard in the grocery store to remind retailers that their job is to inspire buying behavior, not just sell.
Lab-GrownOct 26, 2020
GSI Offers Online Lab-Grown Diamond Course
The online course will cover the history of lab-grown diamonds, growth identification, detection, and more.
A GSI grader using a machine designed to detect CVD-grown diamonds. GSI is now offering an online course about lab-grown diamonds.
New York—Lab-grown diamonds have been the talk of the town for a while.
Gemological Science International is offering a new online education course, “Laboratory-Grown Diamond Essentials,” to learn more about them.
“It is imperative that the jewelry industry has the ability to communicate about laboratory-grown diamonds confidently and with transparency,” Chief Learning Officer Alethea Inns said in a press release about the course.
Following a soft launch of the course, GSI found it was a good fit for those in the industry without a gemological or laboratory background, like retailers and wholesalers, a company spokesperson said.
The course covers the history of lab-grown diamonds, growth and production methods, industry definitions and terminology, disclosure, the 4Cs for lab-growns, identification, and detection.
The cost of the course is $100.
“There are many nuances when it comes to lab-grown diamonds; from their growth methods and treatments, to understanding the various inclusions, color undertones and other factors, it’s not exactly the same as natural diamonds,” noted Debbie Azar, president and co-founder of GSI.
Its team has graded and identified hundreds of thousands of laboratory-grown diamonds, GSI said. It opened a facility in New York in 2018 dedicated exclusively to lab-grown diamonds.
GSI said its researchers and scientists have made “notable discoveries” in lab-grown diamond identification, such as finding man-made sapphire melee set among natural diamonds in a piece of jewelry in June 2019.
GSI announced in March its LGX Lab Grown Diamond Report would list the growth method and any post-growth treatments or enhancements.
Founded in New York City in 2005, GSI has expanded to 13 gemological laboratory facilities across four continents.
To learn more about its course offerings, email edu@gemscience.net.
Editors' Picks
Sponsored by
More on Lab-Grown
The Latest
MajorsApr 30, 2026
Claire’s New Summer Campaign Is a Sensory Wonderland for Gen Alpha“A Girl SMR at Claire’s” celebrates girlhood through the five senses with stacked jewelry, slime toys, scented accessories, and ASMR.
AuctionsApr 30, 2026
Vintage Cartier Watch Crashes Through Records, Selling for $2MBelieved to be one of three made in 1987, the Cartier London Crash was hot at the “Shapes of Cartier” sale at Sotheby’s Hong Kong.
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.
CrimeApr 30, 2026
Masked Group Uses Hammers, Pepper Spray in Texas Jewelry Store RobberyOfficials are looking for a group that robbed Marc Robinson Jewelers at an outlet mall in Round Rock, Texas, in broad daylight on April 21.
Weekly QuizApr 30, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
Supplier BulletinApr 30, 2026
OROAREZZO 2026: The B2B Event for Italian Excellence in Goldsmith, Jewelry and Silver ManufacturingSponsored by OROAREZZO International Jewelry Exhibition
MajorsApr 29, 2026
The Thought Process Behind the Mother's Day Email Opt-OutSome retailers are taking a nuanced approach to marketing what can be a difficult holiday for many.
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.
IndependentsApr 29, 2026
Dick Abbott to Retire From The EdgeThe Edge has announced its new CEO, as well as a new partnership with an investment firm focused on founder-led software businesses.
SourcingApr 29, 2026
De Beers’ Production Rises, Market Remains ‘Challenged’De Beers’ diamond production was up 17 percent in Q1, boosted by increased output at its mines in South Africa and Canada.
AuctionsApr 29, 2026
This'll Be the Day You Own John Wayne's RingA signet ring belonging to the Western film star of Hollywood’s Golden Age will be up for auction at Elmwood’s next month.
Policies & IssuesApr 28, 2026
Tariff Refunds: How to File, What to Expect Importers can submit claims now to receive money back for the IEEPA tariffs they’ve paid, with refunds expected to take up to 90 days.
IndependentsApr 28, 2026
This North Carolina Jeweler Is Passing the TorchThe owners of Gregory Jewelers in Morganton, North Carolina, are heading into retirement.
SourcingApr 28, 2026
Doug Hucker Retires From ICAThe colored gemstone industry leader is heading into retirement after four years as the association’s CEO.
SourcingApr 28, 2026
NDC Hires Tapestry Exec to Head Global Marketing Susie Dewey joins the Natural Diamond Council as its new chief marketing officer.
AuctionsApr 27, 2026
12 Years Later, the ‘Ocean Dream’ Diamond Resurfaces at Christie’sThe largest known fancy vivid blue-green diamond could fetch more than $12 million at its second auction appearance.
ColumnistsApr 27, 2026
Stop Treating Mother’s Day Like an AfterthoughtEmmanuel Raheb says jewelers need to start marketing early and make it easy for customers to pick a gift for mom.
IndependentsApr 27, 2026
Longnecker Jewelry Celebrates 30 YearsIn honor of the milestone, the Nebraska jeweler has debuted Leslie & Co., its new in-house jewelry brand.
MajorsApr 27, 2026
JBT Re-Elects Jeff Corey as Board ChairThe trade organization, which held its annual elections earlier this year, also added five new board members.
SurveysApr 24, 2026
Mother’s Day 2026 Jewelry Spending to Top $7B, NRF SaysNRF’s annual survey found that 45 percent of consumers plan to purchase jewelry for a loved one this Mother’s Day.
TechnologyApr 24, 2026
TwentyFour’s Digital-Age Locket Is a Virtual VaultThe “Vault” charm, our Piece of the Week, expands on the memories that can be stored in a locket by connecting to your phone.
Events & AwardsApr 24, 2026
Hamptons Jewelry Show to Return in JulyThe open-to-the-public luxury jewelry and timepiece show, in its second year, is slated for July 23-26.
IndependentsApr 23, 2026
Meet the Real Moms of Day’s JewelersThe jeweler’s Mother’s Day campaign highlights the women who work there—mothers, grandmothers, women who want to be mothers, and dog moms.
Supplier BulletinApr 23, 2026
JM® Shipping Solution: Smarter Shipping for High-Value GoodsSponsored by Jewelers Mutual
AuctionsApr 23, 2026
John Jacob Astor IV’s Titanic Pocket Watch Fetches $1MThe Patek Philippe for Tiffany & Co. timepiece Astor brought aboard the ill-fated ship sold for double its estimate at a Freeman’s auction.
CollectionsApr 23, 2026
Adam Neeley’s High Jewelry Collection Steps Into Salvador Dalí’s GardenThe “Dalí’s Garden” collection was inspired by a surreal dream Neeley had after cooking a recipe from Salvador Dalí’s 1973 cookbook.
IndependentsApr 23, 2026
Windsor Jewelers Names New Buying DirectorNatalie Feanny has been appointed to the role.
