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

Harwell Godfrey Met Gala brooch with Mediterranean Blue diamond
AuctionsMay 06, 2025
Harwell Godfrey Reimagines 10-Carat Blue Diamond for Met Gala-Ready Brooch

Designer Lauren Harwell Godfrey made the piece as an homage to the 2025 gala’s theme, “Superfine: Tailoring Black Style.”

Jewelers of America 20 Under 40 for 2025
Events & AwardsMay 06, 2025
Here’s Who Made Jewelers of America’s New ‘20 Under 40’ List

Expanded this year to include suppliers, JA’s 2025 list honors 40 up-and-coming professionals in the jewelry industry.

Sissys Log Cabin Fort Smith Arkansas
IndependentsMay 06, 2025
Sissy's Log Cabin Opens New Store

Located in Fort Smith, it’s the Mid-South jeweler’s first store in Northwest Arkansas.

antique_Vegas_2024_by_headshot_stories_9454.jpg
Brought to you by
Las Vegas Antique Jewelry & Watch Show: Showcasing the Most Collectible Merchandise from Across the Globe

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

Gunderson’s Jewelers
IndependentsMay 06, 2025
Gunderson’s Jewelers to Be Featured on ‘World’s Greatest’ TV Series

The episode about the family-owned jeweler will premiere May 17.

Weekly QuizMay 01, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Zadok Jewelers Austin store
IndependentsMay 05, 2025
Zadok Jewelers Opens Store in Austin

The Houston-based jeweler’s new 11,000-square-foot showroom will include a Rolex boutique.

Nancy Astor Cartier turquoise and diamond tiara
AuctionsMay 05, 2025
Nancy Astor’s Cartier Tiara Heads to Auction

The turquoise and diamond tiara hasn’t been on the market since it was purchased by Lord Astor in 1930.

Supplier Spotlight -Recorded-Webinar.png
Brought to you by
Watch: The Winston Red: GIA Examines the Smithsonian’s Newest Addition

Supplier Spotlight Sponsored by GIA

David DeCook Crater of Diamonds State Park 3.81-carat brown Duke Diamond
SourcingMay 05, 2025
Crater of Diamonds Yields 4-Carat Brown Diamond

“The Duke Diamond” is the largest diamond registered at the Arkansas park so far this year.

Kraft Mac & Cheese x Ring Concierge Forever Macaroni Necklace
TrendsMay 02, 2025
Ring Concierge, Kraft Partner on Mother’s Day Macaroni Necklace

The childhood craft of making dried pasta necklaces for Mother’s Day is all grown up as the 14-karat gold “Forever Macaroni” necklace.

Angely Martinez emerald Promise ring
CollectionsMay 02, 2025
Piece of the Week: Angely Martinez’s Emerald Promise Ring

Set with May’s birthstone and featuring an earthworm, this ring is a perfect celebration of spring.

Stuller 2025-2026 bridal catalog
MajorsMay 02, 2025
Stuller’s New Bridal Catalog Is Here

“Bridal 2025–2026” includes popular styles and a dedicated section for quick pricing references of lab-grown diamond bridal jewelry.

Americut Gems
SourcingMay 01, 2025
Tariffs & Colored Gemstones: Relying on Stock, Considering the Ripple Effect

Though currently paused, high tariffs threaten many countries where gemstones are mined. Dealers are taking measures now to prepare.

Exterior of new David Yurman store in the Miami Design District
MajorsMay 01, 2025
Peek Inside David Yurman’s New Miami Flagship Store

Located in Miami’s Design District, the 4,000-square-foot store is an homage to David and Sybil Yurman’s artistic roots.

Oscar Heyman emerald and diamond necklace
TrendsMay 01, 2025
Amanda’s Style File: 20 Pieces of Emerald Jewelry for May

May babies are lucky indeed, born in a month awash with fresh colors and celebrated with one of the most coveted colored gemstones.

Jewelers of America logo
MajorsMay 01, 2025
Jewelers of America Opens Applications for 2025 Scholarships

The deadline to apply for the Seymour & Evelyn Holtzman Bench Scholarship is June 12.

Stock image of an empty clothing store
SurveysApr 30, 2025
Consumer Confidence Hits Pandemic-Level Low Amid Tariff Concerns

What’s really worrying U.S. consumers isn’t the present situation; it’s what the economy is going to look like six months from now.

2025 Instore Jewelry Show Graphic
Events & AwardsApr 30, 2025
Instore Show Debuts New Name, Look, and Focus

Now called The Instore Jewelry Show, it will include holiday-focused education, interactive workshops, and a window display contest.

GemWorld GemGuide logo
SourcingApr 30, 2025
GemGuide Has a New Pricing Chart for Colombian Emeralds

It includes pricing for unenhanced Colombian emeralds in the fine to extra fine range.

Tiffany & Co. Sea Turtle Ring
CollectionsApr 30, 2025
Tiffany & Co. Goes Deep-Sea Diving in New Blue Book

The “Sea of Wonder” collection features pieces inspired by the ocean, from its waves to flora and creatures like urchins and sea turtles.

Golconda Blue
AuctionsApr 29, 2025
‘Golconda Blue’ Diamond Pulled From Auction

The 23-carat fancy vivid blue diamond, set to headline Christie’s May jewelry auction, was expected to sell for as much as $50 million.

G.B. Heron Jewelers sign
IndependentsApr 29, 2025
Maryland Jeweler to Close After 36 Years

G.B. Heron Jewelers in Salisbury, Maryland, is set to close as its owner, Jeff Cassels, retires.

National Jeweler Columnist Emmanuel Raheb
ColumnistsApr 29, 2025
Google Ads vs. Social Media Ads: Which Are More Effective?

Emmanuel Raheb outlines the differences between the two platforms and posits that the most successful jewelers use both.

Gemfields rough rubies
SourcingApr 29, 2025
Gemfields Mini Ruby Auction Achieves $7M

The miner said its April sale featured a mix of commercial-quality primary rubies and secondary rubies of varying quality.

Counterfeit Van Cleef & Arpels Alhambra jewelry
CrimeApr 28, 2025
Customs Seizes Nearly 2,000 Pieces of Counterfeit Van Cleef & Arpels Jewelry

U.S. customs agents in El Paso, Texas, intercepted the package, which would have been worth $9 million if the jewelry was genuine.

Suzanne Kalan Tech Ring Jacket Collection
TrendsApr 28, 2025
Suzanne Kalan Launches Tech Ring Jacket Collection

Health monitors become statement pieces when paired with the brand’s new collection of stackable diamond-studded bands.

JCK Industry Fund
Events & AwardsApr 28, 2025
JCK Industry Fund Announces 2025 Grant Recipients

Ten organizations were selected this year.

×

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