Grading

Blackstone Officially Inks Deal to Acquire IGI

GradingMay 22, 2023

Blackstone Officially Inks Deal to Acquire IGI

Blackstone is buying the 80 percent stake in the lab owned by a Chinese company as well as the 20 percent held by the Lorie family.

An International Gemological Institute diamond report
Private equity firm Blackstone has acquired the International Gemological Institute, which operates 29 grading labs and 18 gemology schools across 10 countries.
New York—Private equity giant Blackstone has acquired the International Gemological Institute, the two companies confirmed Sunday in a joint announcement.

The purchase price was $569.7 million, according to a separate statement issued by the lab’s majority owner, a Fosun subsidiary.

Blackstone purchased the grading lab from Shanghai Yuyuan Tourist Mart (Group) Co. Ltd., a subsidiary of Chinese conglomerate Fosun, and Roland Lorie, IGI’s CEO and a member of the founding family.

Fosun acquired an 80 percent stake in the business in 2018, while the remaining 20 percent stayed with its founders, the Belgium-based Lorie family.

The family founded IGI in Antwerp in 1975. It now operates 29 grading labs and 18 gemology schools across 10 countries.

Rumors that Fosun, which is working to reduce debt, wanted to offload its stake in the business first began circulating in January.

Lorie said, “IGI has had a successful track record for close to 50 years since we founded the company, and we are pleased to entrust Blackstone to take IGI on to its next stage of development.

“Under the patronage of Blackstone, we intend to get even closer to the consumer and to grow the business exponentially. The company’s management team is excited to welcome Blackstone and further cement and build upon our market-leading position with the help of Blackstone’s scale, expertise and global network.”

Lorie will remain CEO, he said, while the management team and its nearly 1,000 employees also will remain in place.

Haide Hong, a senior managing director in Blackstone Private Equity Group, said the company has been impressed by IGI’s development under its current management.

“With its strong brand and reputation of upholding the highest standards of quality and authenticity, IGI is well-positioned to benefit from the increasing popularity of gemology,” Hong said.

The acquisition news follows other recent mergers and acquisitions among the industry’s grading labs.

Earlier this month, Israel-based equipment and technology company Sarine completed its acquisition of a majority stake in the Gem Certification and Assurance Laboratory (GCAL), founded by Don and Pamela Palmieri in 2001.

In October 2022, the American Gem Society announced it would close AGS Laboratories at the end of 2022 and merge its operations with the Gemological Institute of America.

 Related stories will be right here …

The Latest

Stock image of paper money and coins
Policies & IssuesOct 08, 2026
Third Wave of IEEPA Tariff Refunds Begins

This round of tariff refunds is for importers that have sued over IEEPA tariffs in the Court of International Trade and won.

Brent Neale Back to Basics Collection Pink Garnet Capsule
CollectionsOct 08, 2026
Brent Neale’s New Collection Goes ‘Back to Basics’

It revisits the brand’s most requested silhouettes, from "Pillow"-set necklaces and bracelets to "Signature"-set rings and earrings.

Ethical Gem Fair Brooklyn
SourcingOct 08, 2026
Ethical Gem Fair Heads Back to Brooklyn

The trade-only event includes buying opportunities as well as educational sessions on artisanal mining, the new Paraíba source, and more.

1872 x 1052 Gemolite.jpg
Brought to you by
Meet Gemology’s Next Generation Microscope: GIA® Gemolite® NXT Professional Edition

Experience gemstones with greater precision and comfort than ever before.

Ara Chanakian Overall Design Winner
Events & AwardsOct 08, 2026
Pattons Fine Jewelry Sweeps Local Design Contest

Ara Chanakian, a jeweler at Pattons, took home top honors in every category at Jewelers of Louisiana’s annual jewelry design competition.

Weekly QuizOct 08, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Reba McEntire belt buckle
AuctionsOct 08, 2026
Reba McEntire’s Jewelry, Watches Head to Julien’s Auctions

The live charity benefit sale in Nashville will also feature gowns, boots, and other memorabilia from the country music legend.

overnght sb 1026.png
Supplier BulletinOct 08, 2026
Overnight Mountings’ Bridal Builder Helps Jewelers Turn Custom Design into a Hands-On Selling Experience

Sponsored by Overnight Mountings

Cover.jpg
Brought to you by
Your Piece Could Be the One Editors Talk About

Submit your pieces for a chance to win in this year's competition.

The entrance to The Plumb Club pavilion at JCK Las Vegas
Policies & IssuesOct 07, 2026
The Plumb Club Amplifies Its Voice as Geopolitical Pressures Mount

The supplier organization recently joined JA and JVC to have more input on political issues affecting the jewelry industry.

Woman wearing Blue Nile Royal Asscher jewelry
CollectionsOct 07, 2026
Blue Nile, Royal Asscher Collection Highlights Natural Diamond Beauty

Blue Nile, a Signet Jewelers-owned brand, is now Royal Asscher’s exclusive licensed retailer in North America.

Audemars Piguet Risoud Eclipse Necklace
CollectionsOct 07, 2026
4 Standout Pieces in Audemars Piguet’s First High Jewelry Collection

“Royal Oak” pays homage to the brand’s most popular watch model using 18-karat gold as well as diamonds, emeralds, and sapphires.

Juan Morales and Joseph Nicosia
MajorsOct 07, 2026
Empire Safe & Vault Promotes Juan Morales to CEO

As part of the transition, Joseph Nicosia has stepped into the role of COO.

American Gem Trade Association logo
SourcingOct 07, 2026
AGTA Extends Deadline for 2026 Spectrum Awards Entries

Participants now have until Oct. 14 to complete their submissions.

Stock image a police car
Policies & IssuesOct 06, 2026
6 Charged in Connection to String of New Jersey Smash-and-Grabs

The alleged thieves used crow bars and sledgehammers to smash into jewelry stores across the state.

The Retail Smiths Principal Partner Sherry Smith
ColumnistsOct 06, 2026
Sherry Smith: Is the Consumer Really Trading Up?

Ahead of the holidays, Smith urges jewelers to take a hard look at who’s buying jewelry, what they’re purchasing, and who’s stopped buying.

Molly Stillman @fashionveggie, Beth Jones @bjonesstyle, Helene Cortez @cortezhelene, and Haley Jordan @haleyjordan12 
SourcingOct 06, 2026
DDG Taps Influencers for ‘My Diamond Does Good’ Campaign

In the new consumer-facing campaign, four fashion and lifestyle creators share the stories behind their natural diamond pieces.

Bryan Cowan and Tom Schwartz
MajorsOct 06, 2026
Frederick Goldman Names COO, CMO

FGI President John Orrico is also leaving the company after more than 13 years.

JIS Miami fall
Events & AwardsOct 06, 2026
JIS Fall Returns to Miami

The 2026 edition will feature presentations on alternative materials and design trends, as well as pop-up activations on the show floor.

Gahcho Kue rough diamonds
SourcingOct 05, 2026
De Beers to Take Full Ownership of Gahcho Kué

It is the last fully operational diamond mine in Canada following the recent closures of Ekati and Diavik.

Tiffany gold cat pin Sandy Lerner
AuctionsOct 05, 2026
The Star Cats of the Sandy Lerner Auction

These jewels stood out at Bonhams’ sale of the cat-loving tech entrepreneur’s collection of objects depicting the feline form.

Sorellina Postscript Collection Campaign Imagery of Paper Plane Pendant
CollectionsOct 05, 2026
Sorellina Writes Another Love Letter for ‘Postscript’ Collection

The fine jewelry brand has expanded the collection that debuted at Couture with four new designs based on its most popular styles.

Bruce Bridges CIBJO
SourcingOct 05, 2026
Bruce Bridges Joins CIBJO Board

The AGTA president was elected for a two-year term on the board of directors.

Aerial image of the Lungwebungu River
SourcingOct 02, 2026
De Beers, National Geographic Society Renew Okavango Eternal Partnership

The partnership, a pledge to protect Africa’s Okavango River Basin, has been extended for an additional five years.

Pandora facility Vietnam front view
MajorsOct 02, 2026
Pandora Opens New $150M Manufacturing Facility in Vietnam

The new facility, its first outside of Thailand, will boost its manufacturing capacity by 50 percent.

Hearts On Fire Dream Heart Pendant
TrendsOct 02, 2026
Hearts On Fire Celebrates 30th Anniversary With Heart Pendant

The special-edition “Dream” pendant, our Piece of the Week, was created to mark Hearts On Fire’s 30-year milestone with 30 diamonds.

Surveillance images of robbery suspects
CrimeOct 01, 2026
Police Looking for 4 Suspects in $600K Smash-and-Grab Robbery

Dubai Jewelers in Springfield, Virginia, was once again the target of an armed robbery.

Rolex Oyster Perpetual Day-Date 40 in 18-karat Jubilee gold with aventurine dial
SurveysOct 01, 2026
Rolex Ranks Among Most Recommended Brands in US, Survey Says

YouGov’s 2026 U.S. Most Recommended Brands report’s out, and a fast-fashion giant is sitting at No. 1 while Rolex is just shy of the top 5.

×

This site uses cookies to give you the best online experience. By continuing to use & browse this site, we assume you agree to our Privacy Policy