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
SourcingSep 04, 2025
Lucara Unveils Unusual 37-Carat Pink DiamondThe Type IIa stone, recovered from Botswana’s Karowe diamond mine last month, features unique coloration.
Events & AwardsSep 04, 2025
27 Can’t-Miss Converge Sessions, Events From sunrise yoga to tariffs talks, these are some events to check out at the upcoming inaugural event.
Brought to you by
Rallying Call for the Jewelry Industry on Tariffs and Other Key IssuesJewelers of America is leading the charge to protect the industry amidst rising economic threats.
WatchesSep 04, 2025
Breitling Takes Its NFL Game to the Next Level Breitling is now the NFL’s official timepiece partner, a move that puts the brand in front of the millions of Americans who watch football.
Weekly QuizAug 29, 2025
This Week’s QuizTest your jewelry news knowledge by answering these questions.
Events & AwardsSep 04, 2025
The NYC Jewelry, Antique, & Object Show Returns in NovemberNYCJAOS is set for Nov. 21-23 in New York City’s Chelsea neighborhood.
SourcingSep 03, 2025
Gemfields Confirms Completion of Fabergé SaleU.S.-based investment company SMG Capital LLC is the new owner of the luxury brand.
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.
MajorsSep 03, 2025
These Are the Nearly 300 Claire’s Stores Set to CloseA new court filing details the locations of the stores that will close, as well as the 830 that will remain open.
MajorsSep 03, 2025
Stuller Releases 2 New Catalogs The new catalogs are “Tools, Equipment, & Metals” and “Findings & Metals.”
TrendsSep 03, 2025
Amanda’s Style File: A Perfect BirthstoneSapphire’s variety of colors make it the perfect birthstone for September.
FinancialsSep 02, 2025
Lab-Grown Diamonds, Lower-Priced Fashion Jewelry Drive Signet Jewelers’ Q2 SalesThe retailer has raised its guidance after seeing total sales increase 3 percent in the second quarter, beating expectations.
MajorsSep 02, 2025
Birks CEO Jean-Christophe Bédos Steps DownNiccolò Rossi di Montelera, executive chairman of the board, was appointed as interim CEO.
MajorsSep 02, 2025
Harry Winston Opens Its Largest Flagship in JapanThe three-floor space also features the jeweler’s largest VIP salon in Japan and offers an exclusive diamond pendant.
CollectionsSep 02, 2025
Stephanie Gottlieb Debuts Silver Designs in ‘All Hours’ CollabThe collection is a collaboration between Stephanie Gottlieb Fine Jewelry and Oak and Luna, focusing on understated essentials.
AuctionsAug 29, 2025
Sotheby’s UAE Sale to Feature 32-Carat Fancy Vivid Orangy Pink DiamondThe highlight of a single-owner jewelry and watch collection, it’s estimated to fetch up to $7 million at auction this December.
FinancialsAug 29, 2025
Movado’s Q2 Sales Rebound Despite Tariff ImpactCEO Efraim Grinberg noted a resurgence in the fashion watch market.
CollectionsAug 29, 2025
Piece of the Week: Mark Davis’ ‘Bullseye’ Necklace The “Bullseye” necklace, with vintage bakelite and peridot, August’s birthstone, is the perfect transitional piece as summer turns to fall.
Supplier BulletinAug 28, 2025
Clientbook Is Helping Jewelers Turn Clienteling Challenges into Wins with Hands-On Training and CoachingSponsored by Clientbook
SourcingAug 28, 2025
Botswana Declares Public Health Emergency Amid Diamond Sales SlumpPresident Duma Boko addressed the country’s medical supply chain crisis in a recent televised address.
MajorsAug 28, 2025
Borsheims Names New Jewelry BuyerFormer Free People buyer Afton Robertson-Kanne recently joined the retailer.
IndependentsAug 28, 2025
Sissy’s Log Cabin Donates School Supplies to Memphis StudentsThe jeweler teamed up with two local organizations for its inaugural “Back to School and Bling” event.
EditorsAug 27, 2025
Taylor Swift’s Engagement Ring Is a Fairy Tale for Vintage Diamond CutsThe singer’s new bling, reportedly a natural old mine-cut diamond, is no paper ring.
SourcingAug 27, 2025
11,685-Carat Emerald Recovered From Zambia’s Kagem MineDubbed the “Imboo,” or “buffalo,” emerald, the rough gemstone is part of Gemfields’ latest emerald auction, which is taking place now.
SurveysAug 27, 2025
Consumer Confidence Slips in August Amid Job, Income WorriesPlans for dining out, booking vacations, and buying big-ticket items were down.
CollectionsAug 27, 2025
Mined + Found’s New Collection Gets Playful The “Play” collection centers on nostalgic toys that have kinetic elements to carry playfulness and wonder into adulthood.
CollectionsAug 26, 2025
Does Your Jewelry Stack Need a Snack?Designer Christina Puchi, the creative force behind CCWW Designs, has created charms and pendants based on iconic candies and crackers.
