GradingOct 13, 2022
GIA to Begin Digital Report Migration With Diamond DossierGradingDec 21, 2022
IGI Now Issuing Reports for Moissanite From Roseco
The reports will state that IGI has verified the material as lab-grown moissanite and provide the stone’s weight and shape.
The International Gemological Institute is now issuing “Certificates of Authenticity” for moissanite sold by Dallas-based company Roseco Inc.
New York—The International Gemological Institute announced it has begun issuing reports for lab-grown moissanite from one company, Dallas-based distributor Roseco Inc.
The IGI Certificates of Authenticity state the lab has verified the material as man-made moissanite (there is natural moissanite, though it is extremely rare), while also giving the stone’s carat weight, shape and “colorless characteristics.”
IGI said it will issue the certificates for Roseco moissanite in all shapes and weighing between 0.50 and 5 carats.
Roseco will sell the IGI-certified stones both loose and set in stud earrings, solitaire rings and solitaire pendants.
The program is designed to protect consumers as an increasing number of synthetics, simulants and counterfeits come to market, IGI said.
“There are a lot of different gemstone and jewelry options on the market, which is great, but it can also be confusing,” IGI North American President Avi Levy said. “Our laboratory analysis and verification will help retailers and consumers be assured of the authenticity and quality of the Roseco moissanite they are selling and buying.”
Related stories will be right here …
The IGI Certificates of Authenticity state the lab has verified the material as man-made moissanite (there is natural moissanite, though it is extremely rare), while also giving the stone’s carat weight, shape and “colorless characteristics.”
IGI said it will issue the certificates for Roseco moissanite in all shapes and weighing between 0.50 and 5 carats.
Roseco will sell the IGI-certified stones both loose and set in stud earrings, solitaire rings and solitaire pendants.
The program is designed to protect consumers as an increasing number of synthetics, simulants and counterfeits come to market, IGI said.
“There are a lot of different gemstone and jewelry options on the market, which is great, but it can also be confusing,” IGI North American President Avi Levy said. “Our laboratory analysis and verification will help retailers and consumers be assured of the authenticity and quality of the Roseco moissanite they are selling and buying.”
IGI said it has issued gem identification reports on moissanite for years, as do other labs, including the Gemological Institute of America and the Gem Certification & Assurance Lab.
This report for Roseco, however, is the first to include custom information fields such as the Refractive Index and Dispersion comparison chart, the lab said.
A French scientist named Henri Moissan is credited with discovering natural moissanite, which he found near a meteor crater in Arizona in 1893. Scientists perfected the process of growing it in a lab in the 1950s.
The material has a higher refractive index than diamond at 2.69 and ranks between 9.25 and 9.50 on the Mohs hardness scale, above corundum (sapphire and ruby).
Editors' Picks
Sponsored by
More on Grading
The Latest
Policies & IssuesSep 17, 2026
Tariffs on India Could Increase as Russian Sanctions Bill Heads to Trump’s DeskThe bill has a provision that allows the president to raise tariffs on countries that import Russian oil and gas to as much as 100 percent.
Events & AwardsSep 17, 2026
This Is the Winner of the 2026 Robert M. Shipley AwardThe American Gem Society presented the annual award to a former president of its board.
CollectionsSep 17, 2026
Cynthia Erivo, Zoë Chicco’s Jewelry Collab Is an Ode to TransformationThe “Chrysalis” capsule centers butterfly motifs representing growth, transformation, and the unfolding of who you are.
Brought to you by
Meet Gemology’s Next Generation Microscope: GIA® Gemolite® NXT Professional EditionExperience gemstones with greater precision and comfort than ever before.
Events & AwardsSep 17, 2026
Louisiana Retailer Kevin Patton Wins Lifetime Achievement AwardJewelers of Louisiana presented Patton, the third-generation president of Pattons Fine Jewelry, with the award at its annual convention.
Weekly QuizSep 17, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
PodcastsSep 16, 2026
Episode 9: Remembering Cindy EdelsteinTwo special guests join the podcast to commemorate the 10th anniversary of the designer advocate, mentor, and author’s untimely passing.
CollectionsSep 16, 2026
Jessica McCormack, L’Objet Collab on Homewares CollectionMcCormack brings sea-inspired motifs from her “Beaches” collection to L’Objet’s tableware, vanity pieces, and first-ever cutlery set.
Brought to you by
Your Piece Could Be the One Editors Talk AboutSubmit your pieces for a chance to win in this year's competition.
CrimeSep 16, 2026
JSA Issues Warning to NJ Jewelers After Rash of Smash and GrabsNine New Jersey jewelers have been victims of smash-and-grab robberies this year, prompting JSA to circulate a list of recommendations.
IndependentsSep 16, 2026
Bromberg & Co. Names New PresidentMarlin “Brian” Hood, who has been with the store for 20 years, will succeed Ricky Bromberg, who died earlier this month.
MajorsSep 16, 2026
Midas Chain Releases ‘House of Midas’ Bridal CatalogThe new bridal catalog features the latest jewelry collections and designs from timeless classics to modern silhouettes.
EditorsSep 15, 2026
2026 Emmys Jewelry: An Either/Or Proposition Stars wore either a necklace or earrings at 78th Primetime Emmy Awards but rarely both, Natalie Francisco notes.
ColumnistsSep 15, 2026
The Levels Your Website Must Clear Before AI Recommends YouJennifer Shaheen compares this new era of AI-powered SEO to a video game: your website must clear one level before advancing to the next.
IndependentsSep 15, 2026
Armadani Launches Retail Support Program for Holiday SeasonThe program highlights “Made in Italy” fine jewelry with digital merchandising, sales education, and local marketing support.
EditorsSep 15, 2026
Q&A: Signet Jewelers’ Joan Hilson on Diamond Demand, the HolidaysHilson, Signet’s chief operating and financial officer, discussed Q2, resurgent natural diamond demand, and why Blue Nile is a standout.
ColumnistsSep 14, 2026
Sherry Smith: Stop Waiting for December to Save Your ChristmasThe stores that have a great December are the ones that made good decisions in August, September, and October, Sherry Smith writes.
AuctionsSep 14, 2026
22 Carats of ‘Sunshine’ Are Up for AuctionThe 22.09-carat fancy yellow “Pragnell Kimberley Sunshine Diamond” is part of the fall jewelry sale at Heritage Auctions.
IndependentsSep 14, 2026
Greenwich St. Jewelers to Unveil Photography Exhibition“Adornos: Jewelry, Memory & What We Pass Down” honors the jewelry’s importance to New York City’s Latine communities.
SourcingSep 14, 2026
Gemfields Sells All Lots at First Emerald Auction in 9 MonthsThe company’s managing director of sales said the results demonstrate “continued strong demand for commercial-quality emeralds.”
SourcingSep 14, 2026
Diamonds Do Good Pledges Support for Eye Care ProgramThe nonprofit awarded a grant to the Gift of Sight initiative spearheaded by South African musician Black Coffee.
CollectionsSep 11, 2026
A Sapphire ‘Stardust’ Ring From Greenwich St. Jewelers The Latine-owned New York jeweler is marking two milestones this year: its 50th anniversary and the 25th anniversary of the 9/11 attacks.
MajorsSep 11, 2026
The Wishing Place by JTV OpensThe jewelry retail broadcast network has sponsored a new space for Make-A-Wish East Tennessee on its campus in Knoxville.
Events & AwardsSep 11, 2026
The Edge Awards Scholarships to 2 Young Jewelry ProfessionalsThe recipients were recognized at the 24 Karat Club of the Southeastern United States’ annual banquet.
MajorsSep 10, 2026
Lagos Founder Steven Lagos Steps Down as CEO Keith Rolfe, CFO and COO of Lagos, is now at the jewelry brand’s helm while Steven takes on the role of executive chairman.
CrimeSep 10, 2026
FBI Offers $50K Reward for ‘Most Wanted’ Fugitive in $1M Jewelry HeistAlberto Perez-Elias is one of four men charged in the armed robbery of a Cape Coral, Florida, jewelry store and remains at large.
AuctionsSep 10, 2026
Massive Matched Pair of Paraíba Tourmalines Head to Sotheby’sThe “Kat Florence Luminas” will be offered together as one lot and could fetch up to $637,000.
SourcingSep 10, 2026
AGTA Announces 4 Newly Elected DirectorsFour directors were elected to the AGTA board and will serve three-year terms beginning in February.
