Grading

Another Diamond With Fake GIA Inscription Surfaces

GradingSep 23, 2021

Another Diamond With Fake GIA Inscription Surfaces

Graders at HRD Antwerp found this one, a HPHT-treated natural diamond inscribed with the report number of an untreated stone.

This 1.50-carat diamond was submitted to HRD Antwerp inscribed with a GIA report number for an untreated natural diamond. However, HRD Antwerp graders determined through testing that it is an HPHT-treated diamond with a fake inscription. (Photo courtesy of HRD Antwerp)
Antwerp—Another diamond with a counterfeit GIA report number inscription has surfaced, this time at a lab in Antwerp.

HRD Antwerp reported this week that it recently analyzed a 1.50-carat diamond submitted to its lab. 

The diamond was identified as Type IIa—meaning they contain no measurable nitrogen or boron impurities, a rarity for natural diamonds—which raised an immediate red flag for the lab. 

HRD Antwerp said Type IIa diamonds are always “investigated extensively” to ensure they are natural diamonds without any color enhancements. 

During testing, lab graders discovered the diamond had indeed undergone high-pressure, high-temperature (HPHT) treatment even though the GIA grading report that corresponded with the inscription number made no mention of color treatment. 

Upon detailed microscopic investigation, graders noticed that even though the stone’s carat weight, cut and final clarity grade (VS1) matched the report, the clarity characteristics, while “quite similar,” did not match up exactly. 

“Since these characteristics are a unique fingerprint of the diamond, the inscription was conclusively identified as false,” HRD Antwerp said.

 Related stories will be right here … 

The report out of Antwerp is one in a string of recent incidents of labs finding diamonds with counterfeit GIA inscriptions, some lab-grown diamonds or diamond simulants inscribed with report numbers for natural stones and others lower-quality goods inscribed with report numbers for better diamonds. 

In a statement to National Jeweler, GIA said it has seen an uptick in the number of fraudulent inscriptions on stones submitted to its labs. 

In an earlier release, GIA shared the same advice HRD Antwerp CEO Ellen Joncheere did in her lab’s recent statement on the 1.50-carat diamond: It is important to have diamond grading reports updated before completing a purchase, especially in instances in which the buyer does not know the seller very well. 

When asked if these diamonds with fake inscriptions are emanating from a single source or geographic locale, GIA said it has not seen any evidence that the recently reported cases are related. 
HRD Antwerp declined to grade the 1.50-carat diamond, as it only issues Treated Diamond Grading Reports for HPHT-treated diamonds when the customer discloses the treatment. 

(Its Treated Diamond Grading Reports are gray in color to distinguish them from the blue reports issued for natural diamonds.) 

HRD Antwerp returned the diamond to the submitting company. 
Michelle Graffis the editor-in-chief at National Jeweler, directing the publication’s coverage both online and in print.

The Latest

Supplier BulletinAug 11, 2022
AGTA GemFair™ Denver – Back and Better Than Before!

Sponsored by AGTA

AuctionsAug 11, 2022
Sotheby’s Is Preparing its First Art Jewelry Auction This Fall

“Art as Jewelry as Art” features works from artists like Salvador Dalí, Alexander Calder, and Max Ernst.

IndependentsAug 11, 2022
Martin Katz Is Moving to a Penthouse

The jeweler is relocating his Beverly Hills store after 20 years and has begun developing a lifestyle brand.

Brought to you by
The American Mined™ Collection: Ethical Sourcing That Matters

Rio Grande provides a pathway to responsibly sourced gemstones.

MajorsAug 11, 2022
Brilliant Earth Opens First Missouri Showroom in St. Louis

It’s the company’s seventh showroom opening this year.

Weekly QuizAug 11, 2022
This Week’s Quiz
Test your knowledge of the latest jewelry news with this quick test.
Take the Quiz
Events & AwardsAug 11, 2022
HRD Antwerp Is Bringing Back Its Jewelry Design Competition

The Belgian organization is calling for entries from all over the world, with an eye on attracting emerging talent.

ColumnistsAug 10, 2022
On Data: What We Know About Jewelry Sales So Far This Year

Sherry Smith digs into year-to-date data on lab-grown vs. natural diamonds, the performance of colored gemstone jewelry, and more.

Brought to you by
Knowledge and Skills for Today’s Hot Topics

From laboratory-grown diamonds to design to country-of-origin, GIA's Alumni Collective™ has a seminar to suite your needs.

EditorsAug 10, 2022
Take a Tour Through Buccellati’s Vintage Jewelry Collection

Associate Editor Lenore Fedow leads readers through the Italian jeweler’s works from the 1940s to the 2000s.

CrimeAug 10, 2022
Smash-and-Grab NY Thieves Flee with $2M in Jewels

The NYPD is still searching for the four suspects who robbed Rocco’s Jewelry in the Bronx.

Events & AwardsAug 10, 2022
JA New York Returns with New Designer Gallery

The jewelry trade show is taking place Aug. 14-16 at the Javits Center in New York City.

MajorsAug 10, 2022
GIA Is Now a Sponsor of AGS Young Titleholders

The sponsorship will help fund programs and initiatives in the upcoming year.

MajorsAug 09, 2022
Signet to Buy Blue Nile in $360M Deal

The jewelry giant said the acquisition will allow it to tap into a pool of customers who are younger, more affluent and ethnically diverse.

TechnologyAug 09, 2022
Tiffany & Co.’s CryptoPunk Pendant NFTs Are Sold Out

There were only 250 made available, selling for more than $50,000.

CollectionsAug 09, 2022
Cora Sheibani Shows a Magic Garden of Jewelry at Sotheby’s

The British-based Swiss designer’s “Pottering Around” collection is for sale at Sotheby’s East Hampton starting this week.

SourcingAug 09, 2022
Diamond Price List Introduces ‘Insights’ Platform

It provides real-time diamond market analytics.

SourcingAug 09, 2022
Grandview Klein to Donate Dialysis Machines to Namibian Clinic

The diamond firm will give the donation at a ceremony in Namibia this month during a trip for select retail jeweler partners.

CrimeAug 08, 2022
Nehal Modi Sentenced to 3-9 Years in Grand Larceny Case

He was convicted last month after falsely claiming he had a deal with Costco in order to obtain millions in diamonds from LLD Diamonds USA.

TrendsAug 08, 2022
Amanda’s Style File: Spicy Spinels

Tough, vibrant, and full of personality, spinel is a perfect birthstone for August babies, Amanda Gizzi says.

IndependentsAug 08, 2022
Gemist, NDC to Offer Custom Pieces by BIPOC Designers

Dorian Webb, one of the designers in the Emerging Designers Diamond Initiative, will be the first to work with Gemist.

MajorsAug 08, 2022
Here’s How to Support Jewelers for Children this JFC Day

The charity will hold its fifth annual fundraising day on Sept. 24.

SourcingAug 05, 2022
Rare Earth Mining Co.’s Bill Heher Dies at 72

The passionate gem lover helped bring more than 300 different varieties of stones to the gem trade.

TrendsAug 05, 2022
Piece of the Week: Storrow Jewelry’s ‘Emblem Rosa’ Charm

The brand has attracted attention for its colorful, vintage-inspired pieces.

MajorsAug 05, 2022
Former Nike Executive Joins Team at David Yurman

Marcelo Tau is the company’s new chief operations officer.

Policies & IssuesAug 05, 2022
Satta Matturi Joins RJC Board

The jewelry designer founded her eponymous brand in 2015 after nearly two decades in the diamond industry.

Supplier BulletinAug 04, 2022
Unusual Jewelry Finds Eager Buyers In Online Auctions

Sponsored by HiBid

WatchesAug 04, 2022
4 Takeaways from Chrono24’s Analysis of the Luxury Watch Market

The watch seller comments on future demand, how the crypto crash impacted Rolex and Patek Philippe pricing, the supply recovery, and more.

×

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