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
CollectionsAug 14, 2025
In Midst of ‘Sardine Girl Summer,’ Pippa Small Looks to ‘Flounder Fall’Her new “Ocean” collection was inspired by Myanmar’s traditional articulated fish jewelry, with depictions of flounder, catfish, and more.
MajorsAug 14, 2025
Casio America Names New CEOLongtime Casio executive Yusuke Suzuki is the new president and CEO of Casio’s U.S. subsidiary.
SourcingAug 14, 2025
West Coast Orgs to Host Trading Event, Mixer in LAThe full-day sourcing and networking event, slated for Aug. 18, will be followed by the fifth annual Mega Mixer Summer Soirée.
Brought to you by
Taking the Moment Head On: How Rio Grande Champions the Present & Future of Fine JewelryAs a leading global jewelry supplier, Rio Grande is rapidly expanding and developing new solutions to meet the needs of jewelers worldwide.
TrendsAug 13, 2025
Cristiano Ronaldo Proposes With Gigantic Oval-Cut DiamondModel Georgina Rodríguez received a rock of an engagement ring, with her diamond estimated to be 35 carats, experts say.
Weekly QuizAug 08, 2025
This Week’s QuizTest your jewelry news knowledge by answering these questions.
SourcingAug 13, 2025
ICA Names 2025 Board of DirectorsThe board elected 9 new directors at its recent ICA Congress in Brazil.
TrendsAug 13, 2025
Colorado Jeweler, Whiskey Maker Collab on Ring GiveawayThree winners will receive a custom ring from Honest Hands Ring Co. inlaid with a piece of history from Denver-based distillery Stranahan’s.
Brought to you by
Investing in the Next Generation of Bench JewelersThe Seymour & Evelyn Holtzman Bench Scholarship from Jewelers of America returns for a second year.
SurveysAug 13, 2025
These Are The 25 Hottest Retailers, Says NRFJD Sports and Wawa were among the fastest-growing retail companies in the U.S. last year.
SourcingAug 13, 2025
Columbia Gem House Launches Winza Sapphires, RubiesThe new inventory, all untreated, features vibrant hues and unique bicolor combinations.
SourcingAug 12, 2025
Gemfields Sells Fabergé for $50MAcquired by a tech investor, the historic brand will continue to focus on jewelry, accessories, and timepieces.
Policies & IssuesAug 12, 2025
Higher Tariff on Chinese Imports Paused for 90 Days, Trump SaysPresident Donald Trump issued an executive order extending the pause on higher tariffs to November as negotiations with China continue.
CollectionsAug 12, 2025
Jacquie Aiche’s New Collection Harnesses the Energy of the ThunderbirdThe “Thunderbird Slab” collection features a thunderbird motif as a symbol of power, protection, and boundless possibility.
ColumnistsAug 12, 2025
Creative Connecting: How to Take a Better HeadshotColumnists Jen Cullen Williams and Duvall O’Steen share tips on how to elevate your professional image.
CrimeAug 11, 2025
Man Convicted of First-Degree Murder in Death of Colorado JewelerPeter Damian Arguello, a jeweler in the Denver suburb of Wheat Ridge, was found dead inside his store in November 2023.
IndependentsAug 11, 2025
Lisa Bridge to Depart Ben Bridge JewelerThe retailer, owned by Berkshire Hathaway, is becoming part of the Berkshire Hathaway Jewelry Group with Helzberg.
Events & AwardsAug 11, 2025
Bethenny Frankel to Give Keynote at CBG’s Experience ShowThe Continental Buying Group’s 2025 Tampa Experience Show is slated for Sept. 8-10.
EditorsAug 11, 2025
The Colors Expected to Be On-Trend in a Couple YearsAssociate Editor Lauren McLemore recently attended a fabrics trade show where a trend forecaster shared her predictions for summer 2027.
FinancialsAug 08, 2025
Brilliant Earth’s Q2 Sales Up 3% as Engagement Ring Sales RiseThe company raised its full-year sales guidance while noting it has not yet assessed the potential impact of the latest tariff news.
Events & AwardsAug 08, 2025
GJEPC’s Jewellers for Hope Celebrates 10 Years of FundraisingThe organization has raised more than $1.3 million for charity since its inception.
TrendsAug 08, 2025
Piece of the Week: Rahaminov Diamonds’ Bezel BangleThe brand’s latest iteration of a bezel-set diamond bangle features clean lines and a timeless design for a new modern silhouette.
WatchesAug 07, 2025
Bulova’s New Collection Honors Tony BennettThe first watch in the series commemorates his participation in the Civil Rights movement, marching from Selma to Montgomery in 1965.
Lab-GrownAug 07, 2025
Chatham Releases Catalog for Loose Lab-Grown GemstonesThe catalog contains a complete listing of all the loose gemstones in stock, as well as information about the properties of each stone.
TechnologyAug 07, 2025
Rembrandt Charms Debuts New Website, Bird CharmsThe company added a retailer dashboard to its site and three new birds to its charm collection, the cardinal, blue jay, and hummingbird.
Policies & IssuesAug 06, 2025
Tariff on India to Rise to 50%, Trump Says An additional 25 percent tariff has been added to the previously announced 25 percent.
MajorsAug 06, 2025
Claire’s Files for Chapter 11 Bankruptcy AgainThe jewelry and accessories retailer plans to close 18 stores as part of the proceedings.
IndependentsAug 06, 2025
Smith & Son Jewelers to Close 107-Year-Old Location Its Springfield, Massachusetts, store is set to close as owner Andrew Smith heads into retirement.
