Grading

GIA bans client for alleged false inscriptions

GradingAug 03, 2015

GIA bans client for alleged false inscriptions

The Gemological Institute of America is no longer grading stones from one Indian company after that company allegedly submitted multiple diamonds inscribed with report numbers for other stones.

New York--The Gemological Institute of America has cut off a client in India for allegedly submitting diamonds that had been fraudulently inscribed, a letter shared with National Jeweler reveals.

Addressed to Ramesh B. Vala of Surat, India-based Cristy Gems and signed by the GIA’s Tom Moses, the letter states that GIA “reasonably suspects” that Cristy has submitted multiple stones to the lab inscribed with report numbers for other diamonds. The inscriptions were not done by the GIA. 

The letter goes on to state that these submissions have “occurred on a number of occasions, indicating a pattern of intentional conduct.” As a result, the GIA stated in the letter that it is closing Cristy Gems’ account, along with four other accounts with which it believes Cristy is associated, and will no longer be accepting any items from the company. Vala, his company and related companies also are barred from opening new accounts with the GIA. 

A request for comment sent via email to the letter’s recipient went unanswered.

The GIA verified Monday that the letter to Cristy Gems did indeed come from them but declined to provide any further details on the case.

According to the letter, two of the accounts submitted their stones to the GIA via Rapaport India, a lab direct business that prepares goods and does take-in, marketing and collects payment for the GIA in India.

Ezi Rapaport said Tuesday that Rapaport India will, of course, no longer be accepting stones from these companies for submission to the GIA and that the companies also have been suspended indefinitely from RapNet, the Rapaport Group’s diamond trading network.

This report of alleged misconduct is the latest in a line regarding fraudulent submissions that are being caught by the industry’s grading labs.

Back in November, the GIA announced that it was suspending its sealing service indefinitely after receiving a sealed diamond for verification that did not match the grading report packaged with it. GIA spokesman Stephen Morriseau said Monday that the sealing service remains suspended.

The GIA also announced at that time that it would no longer issue duplicate grading reports after receiving some diamonds with duplicate reports that did not match the stone.

This past spring, the GIA cut off four clients linked to hundreds of stones submitted with a mysterious color treatment that improves their color by as much as three grades but fades over time.

The GIA is still investigating this treatment.

Diamonds that underwent what is believed to be the same color treatment also surfaced at the International Gemological Institute’s lab in Antwerp.

IGI CEO Roland Lorie said what is known about the treatment at this time is that it is a simple coating that dissolves immediately when the diamond is thoroughly cleaned with alcohol or boiled. Even if neither of these happen the treatment still most likely will fade over time, though the lab does not yet know exactly how long organic fading takes.

What makes it difficult to make determinations about this mystery coating is the fact that by the time the lab suspects something has been done to the stone, “it’s usually too late” to make any determination about what exactly it was, Lorie added.

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

The Latest

Screenshot of Taylor Swift's "Elizabeth Taylor" music video
CollectionsApr 03, 2026
Taylor Swift’s ‘Elizabeth Taylor’ Video Puts Jewelry Front and Center

Iconic pieces, like the Mike Todd Diamond Tiara, appear in the superstar’s new music video for her song inspired by the actress.

Neiman Marcus store in Fort Worth, Texas
MajorsApr 03, 2026
Saks Global Says It Will Emerge From Bankruptcy This Summer

The luxury retailer, which went Chapter 11 in January, announced Thursday that it has secured $500 million in exit financing.

NouvelleBox logo
Events & AwardsApr 03, 2026
JCK Luxury, NouvelleBox Partner on New Designer Ballroom

The NouvelleBox ballroom will feature independent jewelry designers, including Lene Vibe, Wyld Box Jewelry, and Kiaia Limited.

GIA iD100®
Brought to you by
Protect Your Customers and Your Business

You deserve to know what you are selling–to protect your customers as well as your business and your reputation.

Buddha Mama Moon Locket
CollectionsApr 03, 2026
Buddha Mama Brings Its ‘Moon’ Locket To Dallas

The one-of-a-kind locket, our Piece of the Week, opens to reveal three hidden images to keep close to your heart.

Weekly QuizApr 02, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Pandora distribution facility Canada
MajorsApr 02, 2026
Pandora Opens New Canadian Distribution Center Amid Tariff Concerns

The new facility was also designed to better serve its growing customer base in Canada.

Michelle Yeoh Mikimoto
TrendsApr 02, 2026
Michelle Yeoh Fronts New Mikimoto Campaign

The campaign is a tribute to the year 1893, when Kokichi Mikimoto created the world’s first cultured pearl.

TopImageCrop.jpg
Brought to you by
Is This You? Every Jeweler Has This Problem; We Have the Solution.

Every jeweler faces the same challenge: helping customers protect what they love. Here’s the solution designed for today’s jewelry business.

DCA Second Spark Workforce Initiative Graphic
MajorsApr 02, 2026
DCA Launches ‘Second Spark’ Workforce Initiative

The initiative connects veterans and parents returning to the workforce with careers in jewelry retail.

Michael Angelo
MajorsApr 02, 2026
Hoover & Strong Names New National Sales Representative

The wholesale manufacturer and precious metals refiner has appointed Michael Angelo as its new national sales representative.

Pandora and Foundrae medallion jewelry
MajorsApr 01, 2026
Foundrae Sues Pandora for Allegedly Copying Its Medallion Designs

Foundrae also accused the jewelry giant of copying its mood board style of marketing.

John Jacob Astor IV's Patek Philippe for Tiffany & Co., Battin & Co. pencil case
AuctionsApr 01, 2026
John Jacob Astor IV’s Titanic Pocket Watch Heads to Auction

A Patek Philippe for Tiffany & Co. timepiece owned by the American businessman who died on the Titanic will be offered at Freeman's Chicago.

Stock image of a Shell gas station
SurveysApr 01, 2026
Consumers’ Outlook Improves Again in March

The Conference Board’s Consumer Confidence Index edged up, with optimism about the present outweighing worries about the future.

Zach Bear and the Window Necklace Children’s Book from Zachary’s Jewelers
IndependentsApr 01, 2026
Zachary’s Jewelers’ Constance Polamalu to Release Children’s Book

The retailer’s Zach Bear gift comes to life in “Zach Bear and the Window Necklace,” which centers on curiosity, bravery, and helping.

Accredited Gemologists Association Logo
Events & AwardsApr 01, 2026
AGA Opens 2026 Gemological Scholarship, Research Grant Applications

Applications are open for the AGA Gemological Scholarship Program through May 15, and until June 2027 for the Gemological Research Grant.

National Jeweler columnist and Smart Age founder and CEO Emmanuel Raheb
ColumnistsMar 31, 2026
Q1 Clues That Reveal Where Your Jewelry Store’s Sales Are Heading

These customer behavior patterns say a lot about how successful your jewelry store is going to be this year, Emmanuel Raheb writes.

Mejuri Puzzle Collection Campaign Imagery
CollectionsMar 31, 2026
Mejuri Adds Silver to ‘Puzzle’ Collection

Mejuri’s popular collection of 18-karat yellow gold vermeil rings debuted in sterling silver alongside new “Puzzle” slider charms.

Ashley Longshore in Buddha Mama jewelry
CollectionsMar 31, 2026
Buddha Mama, Ashley Longshore to Host Pop-Up in Dallas

The Miami-based jewelry brand and the NYC-based artist will be in Dallas from April 9-11.

Natural Diamond Council world diamond day
SourcingMar 31, 2026
NDC Designates April 8 as 'World Diamond Day'

The initiative invites those in the industry to share stories on social media highlighting the meaning and impact of natural diamonds.

Jillian Wolk, the new CEO of Tracr
SourcingMar 31, 2026
GIA VP Jillian Wolk to Take Over at Tracr

Wolk’s first day on the job as CEO of Tracr, De Beers Group’s blockchain platform, will be May 1.

Tom Moses examining the “Motswedi” diamond
EditorsMar 30, 2026
Tom Moses Looks Back on His Decades at GIA

Moses, who will leave the lab in May after nearly 50 years, discusses his start in the business, gemstones that stand out, and what’s next.

Oscar Heyman Spring Catalog Aquamarine and Diamond Necklace and Platinum Opal, Sapphire, Emerald, Diamond Bracelet
TrendsMar 30, 2026
Oscar Heyman Debuts First Spring Catalog

The new catalog, which showcases 35 one-of-a-kind pieces of jewelry, is a compliment to the company’s popular holiday catalog.

Diavik Diamond Mine winter aerial shot
SourcingMar 30, 2026
Rio Tinto Hauls Last Load from Diavik

Production has ceased at the Canadian diamond mine, which has yielded more than 150 million carats of rough diamonds in its 23-year run.

Tanishq Westborough Massachusetts store
MajorsMar 30, 2026
Tanishq Opens First New England Location

The store opening marks the 10th United States location for the India-based jewelry retailer.

Saks Fifth Avenue door sign
MajorsMar 27, 2026
Saks Global Has Changed Its Mind About Closing These 3 Stores

Two Saks Fifth Avenue locations, one in Florida and one in California, and one Neiman Marcus store are off the chopping block.

Jimmy West celebrating 40 years with Leading Jewelers Guild
IndependentsMar 27, 2026
Jimmy West, Longtime LJG Executive Director, Dies at 72

West, who started in the art department at the Leading Jewelers Guild in 1979, is remembered for his patience, kindness, and dedication.

Itä Yari Whirl Ring Tesoro
CollectionsMar 27, 2026
Itä’s ‘Yarí Whirl’ Ring Tells Every Side of the Story

In the “Tesoro” version of the ring, our Piece of the Week, each side of the gold hexagonal nugget has a unique colored gemstone design.

×

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