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).
More on Grading
The Latest
EditorsJan 12, 2026
Platinum, White Gold Rule the 2026 Golden GlobesAssociate Editor Natalie Francisco highlights her favorite jewelry moments from the Golden Globes, and they are (mostly) white hot.
MajorsJan 12, 2026
These 14 Macy’s Locations Will Close This YearThe store closures are part of the retailer’s “Bold New Chapter” turnaround plan.
MajorsJan 12, 2026
Jewelers Mutual Acquires AI-Powered Event Insurance ProgramThrough EventGuard, the company will offer event liability and cancellation insurance, including wedding coverage.
Brought to you by
Impacting Tomorrow TodayHow Jewelers of America’s 20 Under 40 are leading to ensure a brighter future for the jewelry industry.
MajorsJan 09, 2026
Kendra Scott Taps Activewear Exec as CEO Chris Blakeslee has experience at Athleta and Alo Yoga. Kendra Scott will remain on board as executive chair and chief visionary officer.
Weekly QuizJan 08, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
SurveysJan 09, 2026
U.S. Holiday Retail Sales Up 4%, Visa, Mastercard SayThe credit card companies’ surveys examined where consumers shopped, what they bought, and what they valued this holiday season.
AuctionsJan 09, 2026
Christie’s Names New Global Managing Director for LuxuryKimberly Miller has been promoted to the role.
Brought to you by
Roseco Releases New Full-Line CatalogRoseco’s 704-page catalog showcases new lab-grown diamonds, findings, tools & more—available in print or interactive digital editions.
CollectionsJan 09, 2026
Piece of the Week: Lionheart’s ‘Serenity’ Opal CharmThe “Serenity” charm set with 13 opals is a modern amulet offering protection, guidance, and intention, the brand said.
CollectionsJan 08, 2026
Pandora’s New ‘Bridgerton’ Jewels Celebrate Bees, Bows, and Blooms“Bridgerton” actresses Hannah Dodd and Claudia Jessie star in the brand’s “Rules to Love By” campaign.
Events & AwardsJan 08, 2026
Ana Khouri To Receive 2026 Gem Award for High Jewelry ExcellenceFounded by jeweler and sculptor Ana Khouri, the brand is “expanding the boundaries of what high jewelry can be.”
TrendsJan 08, 2026
Stuller’s Color of the Year Is a Stark Contrast to Pantone’s WhiteThe jewelry manufacturer and supplier is going with a fiery shade it says symbolizes power and transformation.
CollectionsJan 08, 2026
Gracie Abrams To Front New Chanel Jewelry CampaignThe singer-songwriter will make her debut as the French luxury brand’s new ambassador in a campaign for its “Coco Crush” jewelry line.
MajorsJan 08, 2026
Diamond Council of America Names New Board DirectorsThe nonprofit’s new president and CEO, Annie Doresca, also began her role this month.
ColumnistsJan 07, 2026
Peter Smith: Physical Retail—The Beginning or the End?As the shopping mall model evolves and online retail grows, Smith shares his predictions for the future of physical stores.
Events & AwardsJan 07, 2026
Melee Adds 13 New Designers to NYC ShowThe trade show is slated for Jan. 31-Feb. 2 at The Lighthouse in New York City's Chelsea neighborhood.
TrendsJan 07, 2026
Amanda’s Style File: Go for GarnetJanuary’s birthstone comes in a rainbow of colors, from the traditional red to orange, purple, and green.
SourcingJan 07, 2026
Diamonds Do Good Releases 2025 Impact ReportThe annual report highlights how it supported communities in areas where natural diamonds are mined, crafted, and sold.
CrimeJan 06, 2026
2 Jewelers Arrested After TraxNYC Diamond District BrawlFootage of a fight breaking out in the NYC Diamond District was viewed millions of times on Instagram and Facebook.
MajorsJan 06, 2026
Rio Grande Says These Are the Top Personalization Tools for 2026The supplier has a curated list of must-have tools for jewelers doing in-house custom work this year.
MajorsJan 06, 2026
Zales Tests Out A New LookThe Signet Jewelers-owned store, which turned 100 last year, calls its new concept stores “The Edit.”
MajorsJan 06, 2026
LeachGarner Appoints New Director of SalesLinda Coutu is rejoining the precious metals provider as its director of sales.
SourcingJan 06, 2026
AGA Announces 2026 BoardThe governing board welcomed two new members, Claire Scragg and Susan Eisen.
TrendsJan 05, 2026
Amanda’s Style File: New Year’s EditionSparkle with festive diamond jewelry as we celebrate the beginning of 2026.
IndependentsJan 05, 2026
Jeweler Ben Nighthorse Campbell Dies at 92The master jeweler, Olympian, former senator, and Korean War veteran founded the brand Nighthorse Jewelry.
TrendsJan 05, 2026
Pinterest 2026 Trend Report: Brooches, Bold Gold, Cool BlueIn its annual report, Pinterest noted an increase in searches for brooches, heirloom jewelry, and ‘80s luxury.
MajorsJan 02, 2026
Marc Metrick Out as CEO of Saks Global Executive Chairman Richard Baker will take over the role as rumors swirl that a bankruptcy filing is imminent for the troubled retailer.
