Editors

This Chicago Diamond Dealer Has 2 Big Lab-Grown Stones

EditorsJun 25, 2018

This Chicago Diamond Dealer Has 2 Big Lab-Grown Stones

In May, we wrote about a 3.99-carat diamond said to be the biggest lab-grown pink in the world. Not so fast, said one diamond dealer.

20180625_lab-blog-header.jpg
The two lab-grown diamonds owned by Patrick Fay: a 5.03-carat square-cut cushion modified brilliant fancy intense orangy pink (left) and a 15.32-carat cushion modified brilliant white diamond, which he says is the largest lab-grown diamond in the world. (Photo credit: Patrick Fay)

In May, I had the chance to travel to Omaha, Nebraska, for Berkshire Hathaway’s annual shareholders meeting, which, of course, included a number of events at one of the jewelry stores Warren Buffett owns, Borsheims.

There, I met with Amish Shah, the president of lab-grown diamond company Altr. Shah, who’s spoken out before about the marketing of lab-grown diamonds (taking a stance I completely agree with), claimed his company had created the world’s largest pink man-made diamond at 3.99 carats.

But, after I wrote about the stone, a longtime diamond dealer based in Chicago named Patrick Fay reached out to tell me that this pink was not the largest in the world and that he, in fact, had a pink that was bigger.

Fay owns a 5.03-carat man-made square cushion modified brilliant diamond graded by the International Gemological Institute (IGI) as a fancy intense orangy pink of I1 clarity that was irradiated to improve its color.

In addition, it came to my attention Friday that the Gemological Institute of America just published a lab note on another big lab-grown pink—a 5.01-carat square-cut diamond it graded as a fancy intense pinkish orange with a clarity equivalent to SI1.

The lab noted “the combination of size, color, and clarity made this the most remarkable CVD synthetic diamond GIA has tested so far.” (The GIA did not grade Fay’s man-made pink.)

Fay also owns a rectangular cushion modified brilliant lab-grown diamond that is 15.32 carats and, he says, is the largest lab-grown diamond in the world.

IGI graded the stone a G, SI2 while the GIA report states it is “near colorless” and “included.”

(The GIA does not give specific color or clarity grades on its Synthetic Diamond Grading Reports, a topic I have covered on this blog in the past.)

Fay said he has had the pink man-made diamond for two months, while he has had the large lab-grown white for a year and a half. Both have their grading report numbers inscribed on the girdle.

He declined to reveal what he is asking for either diamond and also asked that I not publicly disclose the grower.

I would guess, though, that many of our readers will be able to figure it out on their own, as there are a limited number of companies that can grow diamonds of this size (and want them to enter the market).

Michelle Graffis the editor-in-chief at National Jeweler, directing the publication’s coverage both online and in print.

The Latest

Stock image of shipping containers
Policies & IssuesJul 28, 2025
U.S.-EU Come to Agreement on Tariffs

Announced Sunday, the deal will set the tax on goods imported into the United States from the European Union at 15 percent.

Nanis Ipanema Collection Campaign
CollectionsJul 28, 2025
Nanis Brings a New Palette to ‘Ipanema’

A new edition of the Italian brand’s “Ipanema” collection has debuted with gemstones that evoke Brazil’s breathtaking views.

Kevin O’ Leary and George Mayer of The 1916 Company
MajorsJul 28, 2025
The 1916 Company Partners with ‘Shark Tank’ Star’s Watch Insurance Platform

The retailer will refer its customers to WonderCare, founded by venture capitalist and watch collector Kevin O’Leary.

rio-article photo-diamond.jpg
Brought to you by
Taking the Moment Head On: How Rio Grande Champions the Present & Future of Fine Jewelry

As a leading global jewelry supplier, Rio Grande is rapidly expanding and developing new solutions to meet the needs of jewelers worldwide.

Sissy’s new Little Rock store
IndependentsJul 28, 2025
Sissy’s Log Cabin to Open Flagship in Arkansas

The jeweler’s largest store yet is set to open in Little Rock next fall.

Weekly QuizJul 25, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Jemma Wynne Forme Toggle Necklace
CollectionsJul 25, 2025
Piece of the Week: Jemma Wynne’s ‘Forme’ Necklace

Anne Hathaway was seen wearing the toggle necklace three times while filming scenes for “The Devil Wears Prada 2.”

September Hong Kong jewelry show
Events & AwardsJul 25, 2025
Pre-Registration Open for September Hong Kong Show

Jewellery & Gem World Hong Kong is scheduled for Sept. 15 to 21, and buyer pre-registration will be available until Sept. 7.

an instructor and a student in a bench jewelry classroom
Brought to you by
Investing in the Next Generation of Bench Jewelers

The Seymour & Evelyn Holtzman Bench Scholarship from Jewelers of America returns for a second year.

Bulgari Celestial Mosaic spinel necklace
FinancialsJul 25, 2025
LVMH Sales Slip in H1 Amid ‘Prevailing Uncertainties’

Renovations at Tiffany & Co. stores ate into profits in the company’s watch and jewelry division.

Mark and Candy Udell
Events & AwardsJul 24, 2025
2 Retailers to Receive 2026 Gem Award for Lifetime Achievement

Mark and Candy Udell of London Jewelers will receive the honor at the 24th annual Gem Awards next March.

De Beers marine mining vessel the SS Nujoma
SourcingJul 24, 2025
De Beers Sees Diamond Production Sink 36% in Q2

While struggles continue at the mining and trading end of the pipeline, consumer demand for diamond jewelry is holding steady.

Francesca Villa Fantasia Collection The Crab Pendant, The Mermaid Pendant, Keep Dancing Seahorse Pendant, Keep Dancing Ladybug Pendant, Secret Dreams Pendant, The Puffer Fish Takes Flight Pendant
CollectionsJul 24, 2025
Francesca Villa Adds Dimension to Her Intaglio Characters

The “Fantasia” jewelry collection turns the intaglio animals from her “Close Encounters” collection into 3D characters.

Breitling’s special Eagles Super Bowl watch on gold bracelet
WatchesJul 24, 2025
Breitling Drops Super Bowl Watch Honoring the Philadelphia Eagles

The special Classic Avi Chronograph 42 with an Eagles-green dial is limited to 59 pieces, a nod to the Super Bowl Philadelphia just won.

Stock image of crime scene tape
CrimeJul 23, 2025
JSA Warns of Violent String of Smash-and-Grabs in California

JSA has received reports of mobs swarming jewelry stores, driving cars into the storefront or smashing through the windows.

Silvia Furmanovich Kasmir Collection Carnelian Bracelet and Sketch
CollectionsJul 23, 2025
Silvia Furmanovich’s ‘Kashmir’ Collection Is a Tribute to Northern India

The “Kashmir” collection features centuries-old craft techniques made in collaboration with the region’s master papier-mâché artisans.

Bench jeweler holding a bracelet and a tool
IndependentsJul 23, 2025
Montreal’s Ecksand Eyes Move to SoHo

Creative Director Erica Bianchini shared why the jeweler is looking to expand into the U.S. and how it’s putting Canadian craftsmanship on the map.

LAFD Fire Station 44 and Fire Station 16
IndependentsJul 23, 2025
IJO Raises Nearly $37K for LA Fire Relief

Two Los Angeles Fire Department stations plan to use the donations to upgrade their equipment and tools.

A Vanitas by Hannah Martin and Guy Berryman Sothebys
CollectionsJul 22, 2025
Jewelry With a Rock ‘n’ Roll Aesthetic Heads to Sotheby’s London

Next week, the auction house will kick off a selling exhibition of jewelry by British artist Hannah Martin and Coldplay’s Guy Berryman.

Cover of the book “Flawless: Inside the Largest Diamond Heist in History”
SourcingJul 22, 2025
Antwerp Diamond Heist Documentary Coming to Netflix

“Stolen: Heist of the Century” is based on “Flawless,” the book about the middle-of-the-night theft, and will debut on Netflix in August.

Emmanuel Raheb
ColumnistsJul 22, 2025
The Gifting Gap: How to Market Jewelry Beyond the Holidays

Emmanuel Raheb shares the top five gifting moments outside of major holidays that jewelers should build marketing campaigns around.

NY Now
Events & AwardsJul 22, 2025
NY Now’s Summer Market Returns in August

The wholesale trade show’s Luxury Lifestyle section will showcase established and emerging jewelry designers.

Jeweler setting a diamond into a ring
MajorsJul 21, 2025
Rio Grande Expands Personalization Offerings

As demand for custom jewelry grows, the company is expanding its services to support retailers.

National Associate of Jewelry Appraisers Logo
Events & AwardsJul 21, 2025
NAJA’s 2025 ‘Ace It’ Conference To Go Virtual

The mid-year conference for jewelry and watch appraisers is slated for Aug. 9 to 10 on Zoom.

Jacquie Aiche graduated turquoise beaded necklace
TrendsJul 21, 2025
Amanda’s Style File: Graduated With Honors

Graduated stones make for elevated tennis-style pieces and dramatic statement necklaces.

24th Gem Awards Show Logo
Events & AwardsJul 21, 2025
Gem Awards Now Accepting Nominations for 2026

Nominations in the categories of Jewelry Design, Media Excellence, and Retail Innovation will be accepted through July 30.

Lewis Heyman
MajorsJul 18, 2025
Lewis Heyman on Sourcing Gemstones, Post-Retirement Plans

He retired last month after 28 years traveling the world to source the very best gemstones for his family’s jewelry business, Oscar Heyman.

CCWW Designs Multiple Shell Charm Necklace
TrendsJul 18, 2025
Piece of the Week: CCWW Designs’ Shell Charm Necklace

The charm necklace features six nautical charms of shells and coral that founder Christina Puchi collected on Florida’s beaches.

×

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