Grading

IGI Set to Go Public Next Week

GradingDec 11, 2024

IGI Set to Go Public Next Week

In a CNBC interview, CEO Tehmasp Printer discussed the IPO in India and what declining lab-grown diamond prices mean for the company.

Grader looking into microscope at IGI lab
The International Gemological Institute is set to begin trading in India on Dec. 20, looking to raise nearly $500 million through an initial public offering.
New York—The International Gemological Institute is one step closer to becoming a public company.

The company filed for an initial public offering (IPO) in India on Aug. 22 and is now looking to raise 42.25 billion rupees ($497 million), an increase from its initial goal of 40 billion rupees ($477 million).

IGI is expected to begin trading on Dec. 20, with IPO bids open from Dec. 13 through Dec. 17, according to a red herring prospectus filed Dec. 6.

The price ranges from 397 to 417 rupees per share with a lot size of 35 shares.

The stock would be listed on the National Stock Exchange of India and the Bombay Stock Exchange.

Private equity giant Blackstone acquired IGI in May 2023 from a subsidiary of Chinese conglomerate Fosun and former CEO Roland Lorie, paying nearly $570 million for the lab.

Blackstone had been seeking a valuation of $1.5 billion, per a Reuters report, but was in talks to take the lab as high as $3.5 billion.

This proposed IPO values IGI at around $2.1 billion.

In an interview with CNBC, IGI CEO Tehmasp Printer shared more details about the upcoming IPO.

Following the IPO, Blackstone would go from holding a 100 percent stake in the lab to having a 76 percent stake, he said.

“We are very happy to have Blackstone support us,” he said. “I believe Blackstone is committed for the next 10 years, which could also possibly be extended.”

The net proceeds from the IPO will be used for general corporate purposes and to acquire the remaining outstanding shares of IGI Belgium Group and IGI Netherlands Group from Blackstone.

“Today, we are in consolidation mode. We have taken the lead on lab-grown diamonds and we want to make IGI a global entity,” said Printer.

 Related stories will be right here … 

In the prospectus, IGI highlighted its position as the second-largest independent grading and accreditation services provider in the world, after the Gemological Institute of America, for loose stones and jewelry.

Founded by the Lorie family in Antwerp in 1975, IGI now operates 31 laboratories and 18 education facilities in diamond and jewelry centers around the world.

IGI’s share of the overall grading report market is around 33 percent, said Printer, including 20 percent natural and 13 percent lab-grown diamonds.

In India, IGI is the largest provider of these services, holding 50 percent market share, said the prospectus.

The rise in popularity of lab-grown diamonds has been partly behind its success, though its practices regarding the stones have raised some eyebrows in the industry.

As first reported by JCKOnline.com, IGI disclosed in its draft prospectus filed in August that a lot of its lab-grown diamond grading is done in the factories of the companies growing the diamonds. 

IGI gemologists, as well as employees of the diamond companies, do the grading and the diamond companies supply the equipment, a setup that, IGI acknowledged, comes with risks. 

“As certification via our in-factory and mobile laboratory setups are conducted on the premises of our customers, we may also have less oversight over third parties who have access to our customers’ premises,” the lab said in its August prospectus.  

“While we conduct quality checks and periodic calibration of our gemologists to reassess and adjust their grading techniques, such measures may not be effective in preventing all instances of grading errors or fraud by gemologists or third parties.” 

Printer was not asked about this during the CNBC interview but did discuss the growth in consumer demand for lab-grown diamonds and their falling prices.

“Our growth rate has been immense where lab-growns are concerned,” he said on CNBC. “It’s the new-age diamond. It’s the new kid on the block and we are sitting on the top of it.”

The company also benefits from “economies of scale” when grading lab-grown diamonds, he said, meaning that as the company grades more lab-grown diamonds the cost to do so decreases.

Regarding the sustainability of this revenue growth, Printer said it is sustainable due in part to the affordability of lab-grown diamonds, which has contributed to the market size “increasing rapidly,” and caught the attention of millennials and Gen Z.

Though the market size may be increasing, the declining value of lab-grown diamonds has been a cause for concern in the industry.

The decline in prices should not hurt its margins, he said, adding that prices have been stable for the last nine months or so, now at $200 to $250 per carat wholesale.

“Lab-grown manufacturers and polishers have huge [capital expenditures] and [operational expenditures]. Today, the price has stabilized to a level where I don’t think they can go any lower. Then, it becomes unsustainable,” he said.

The Latest

KIL NYC The Pierced Padlock Wounded
TrendsFeb 09, 2026
These 14 Jewels Will Melt Your Heart This Valentine’s Day

From heart motifs to pink pearls, Valentine’s Day is filled with jewelry imbued with love.

Stock image of a gavel
CrimeFeb 06, 2026
Florida Man Sentenced After Selling Fake Native American Jewelry for a Decade

Prosecutors say the man attended arts and craft fairs claiming he was a third-generation jeweler who was a member of the Pueblo tribe.

Luciano Rodembusch
FinancialsFeb 06, 2026
Pandora’s North America GM Departs Amid Executive Changes

New CEO Berta de Pablos-Barbier shared her priorities for the Danish jewelry company this year as part of its fourth-quarter results.

MJSA Apprenticeship Guide
Brought to you by
The MJSA Mentor & Apprenticeship Program: Attracting & Training the Next Generation of Bench Jewelers

Launched in 2023, the program will help the passing of knowledge between generations and alleviate the shortage of bench jewelers.

Cece Jewellery Bespoke Wuthering Heights Signet Rings on Margot Robbie and Jacob Elordi
TrendsFeb 06, 2026
Margot Robbie, Jacob Elordi Wear Matching Cece Jewellery Signet Rings

Our Piece of the Week picks are these bespoke rings the “Wuthering Heights” stars have been spotted wearing during the film’s press tour.

Weekly QuizFeb 05, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Pandora platinum
MajorsFeb 05, 2026
Pandora to Begin Selling Platinum-Plated Jewelry

The introduction of platinum plating will reduce its reliance on silver amid volatile price swings, said Pandora.

Entrance to the Jwaneng diamond mine in Botswana
SourcingFeb 05, 2026
De Beers Lowers Production Guidance for 2026, Anglo Mulls Another Writedown

It would be the third impairment charge in three years on De Beers Group, which continues to grapple with a “challenging” diamond market.

JamAlert 1872x1052.png
Brought to you by
How Jewelers Can Fight Back Against Cell Jammers

Criminals are using cell jammers to disable alarms, but new technology like JamAlert™ can stop them.

Rendering of renovated Borsheims store
IndependentsFeb 05, 2026
Borsheims to Undergo Massive Renovation in the Spring

The Omaha jewelry store’s multi-million-dollar renovation is scheduled to begin in mid-May and take about six months.

Marco Bicego Paradise Amethyst Long Necklace
CollectionsFeb 05, 2026
Marco Bicego’s Amethyst Collection Travels to a Purple Paradise

The “Paradise Amethyst” collection focuses on amethyst, pink tourmaline, garnet, and 18-karat yellow gold beads.

Watches of Switzerland Regent Street London store
FinancialsFeb 05, 2026
Watches of Switzerland Reports Strong Holiday Results in Q3

The retailer credited its Roberto Coin campaign, in part, for boosting its North America sales.

Headshot of Sherry Smith, National Jeweler columnist and vice president of coaching strategy and development at the Edge Retail Academy
ColumnistsFeb 04, 2026
January Jewelry Sales: More Dollars Spent, Fewer Units Sold

Sherry Smith unpacks independent retailers’ January performance and gives tips for navigating the slow-growth year ahead.

Saks Fifth Avenue New York storefront
MajorsFeb 04, 2026
What Designers Should Know About Saks Global’s Bankruptcy

From how to get an invoice paid to getting merchandise returned, JVC’s Sara Yood answers some complex questions.

Jacquie Aiche Raw Amethyst Cluster Starburst Diamond Ring
TrendsFeb 04, 2026
Amanda’s Style File: February Birthstone Bliss

Amethyst, the birthstone for February, is a gemstone to watch this year with its rich purple hue and affordable price point.

Matteo Cuelli
MajorsFeb 04, 2026
Marco Bicego Names New Global Marketing Director

The Italian jewelry company appointed Matteo Cuelli to the newly created role.

Bryan Cowan, Thomas Schwartz, Liliana Estrella
MajorsFeb 04, 2026
Frederick Goldman Updates Leadership Team

The manufacturer said the changes are designed to improve speed, reliability, innovation, and service.

Stock image of shipping containers
Policies & IssuesFeb 03, 2026
Tariff Relief on Horizon for India as Trump, Modi Make Deal

President Trump said he has reached a trade deal with India, which, when made official, will bring relief to the country’s diamond industry.

Jade Trau Spring Summer 2026 Collection Campaign
CollectionsFeb 03, 2026
Jade Trau Releases New Charms, Introduces Rondelles

The designer’s latest collection takes inspiration from her classic designs, reimagining the motifs in new forms.

Casio Headquarters Jersey City, New Jersey
WatchesFeb 03, 2026
Casio America Calls Jersey City Home

The watchmaker moved its U.S. headquarters to a space it said fosters creativity and forward-thinking solutions in Jersey City, New Jersey.

Nivoda gemstones
SourcingFeb 03, 2026
Nivoda Reveals Upgraded Gemstone Marketplace

The company also announced a new partnership with GemGuide and the pending launch of an education-focused membership program.

Ylang 23 store burglary
CrimeFeb 02, 2026
Ylang 23’s Dallas Store Burglarized

The Texas jeweler said its team is “incredibly resilient” and thanked its community for showing support.

Tyla at 68th annual Grammy Awards
EditorsFeb 02, 2026
Stars Choose Chokers, Elongated Earrings at 2026 Grammys

From cool-toned metal to ring stacks, Associate Editor Natalie Francisco highlights the jewelry trends she spotted at the Grammy Awards.

Silver, Gold, and Bronze Medals for 2026 Winter Olympics
CollectionsFeb 02, 2026
2026 Winter Olympic Medal Design Symbolizes Unity

The medals feature a split-texture design highlighting the fact that the 2026 Olympics are taking place in two different cities.

Dawn dish soap, Dove soap, M&M candy, Tylenol
SurveysJan 30, 2026
These Are the Top Brands of 2026, Says YouGov

From tech platforms to candy companies, here’s how some of the highest-ranking brands earned their spot on the list.

Etiq Khol Ring
CollectionsJan 30, 2026
Follow the Beat With Etiq’s ‘Khol’ Ring

The “Khol” ring, our Piece of the Week, transforms the traditional Indian Khol drum into playful jewelry through hand-carved lapis.

Arch Crown Tag & Label 2026 Catalog
MajorsJan 30, 2026
Arch Crown’s 2026 ‘Tag & Label’ Catalog Is Here

The catalog includes more than 100 styles of stock, pre-printed, and custom tags and labels, as well as bar code technology products.

Ghirardelli Chocolocket
CollectionsJan 29, 2026
Ghirardelli’s ‘Chocolocket’ Returns for Valentine’s Day

The chocolatier is bringing back its chocolate-inspired locket, offering sets of two to celebrate “perfect pairs.”

×

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