Grading

Worldwide, industry reacts to undisclosed synthetics

GradingDec 08, 2013

Worldwide, industry reacts to undisclosed synthetics

Synthetic diamonds--specifically those being passed off as natural--were one of the top stories in the jewelry industry last year, and it doesn’t look the man-made stones will be relinquishing their news-making reign anytime soon.

New York--Synthetic diamonds--specifically those being passed off as natural--were one of the top stories in the jewelry industry last year, and it doesn’t look the man-made stones will be relinquishing their news-making reign anytime soon.

The issue of undisclosed synthetics first came to light in a major way in May 2012 when hundreds of them turned up at a grading laboratory in Antwerp. This October, reports again surfaced about large volumes of undisclosed synthetic melee being mixed in with natural.

These latest claims touched off a wave of reactions from players all over the globe, including the Gem & Jewellery Export Promotion Council (GJEPC) in India, the Israel Diamond Exchange and, in the United States, the Diamond Manufacturers & Importers Association of America (DMIA).

The GJEPC said its concerns about mixing undisclosed synthetics with natural diamonds arose from media reports and two instances of "actual undisclosed mixing being detected." The organization formed a “special committee” to look into these two cases and, as of Monday, said the investigation was ongoing.

Recently, the GJEPC, along with a number of other India-based jewelry trade organizations, formed a Natural Diamond Monitoring Committee to enhance consumer confidence, ensure “proper segregation” of natural and synthetic stones and create policies to avoid the misrepresentation of lab-grown stones.  On Friday, the GJEPC, along with the Gemmological Institute of India, opened a Diamond Detection and Resource Center (DDRC) at the Bharat Diamond Bourse.

De Beers’ Varda Shine and Paul Rowley were on hand for the opening, along with GJEPC Chairman Vipul Shah. The center will provide detection services for any parcels submitted, offer resources creating awareness about lab-grown diamonds and testing methods, and provide services to diamond companies, including on-the-job training of staff in detection methods.

In the U.S., a group of industry organizations led by the DMIA plans to hold an invitation-only meeting in New York on Jan. 8 to discuss the issue.

DMIA President Ronnie VanderLinden said representatives from law enforcement as well as from a number of key industry organizations, Jewelers of America and the American Gem Society among them, will attend the meeting.  So will representatives from three grading labs: the Gemological Institute of America, the International Gemological Institute and the European Gemological Laboratory (EGL USA).

The goal of the DMIA meeting in New York is to “put enforceable measures in place to prevent synthetics (from) being presented as natural diamonds,” the organization said.

Meanwhile, in Israel, the Israel Diamond Exchange announced recently that it is creating an “awareness campaign” for synthetic diamonds, a campaign that kicked off Sunday with a speech in Israel by industry journalist and consultant Chaim Even-Zohar. 
Michelle Graffis the editor-in-chief at National Jeweler, directing the publication’s coverage both online and in print.

The Latest

2025 National Jeweler Retailer Hall of Fame inductees
Events & AwardsJun 06, 2025
Here Are the 2025 Retailer Hall of Fame Inductees

This year’s honorees include a Midwest retailer and two multi-store independents, one in New York and the other in New England.

Harwell Godfrey Granny Square Eleanor Necklace
CollectionsJun 06, 2025
Piece of the Week: Harwell Godfrey’s ‘Granny Squares Eleanor’ Necklace

As an homage to iconic crochet blankets, the necklace features the nostalgic motif through a kaleidoscope of cabochon-cut stones.

 Laura Gallon Joaillerie “Dynasty” ring, Bijules “Compass” bolo tie, Löf “The Orbitalis” ring
Events & AwardsJun 05, 2025
The 12 Fresh Faces in Couture’s Design Atelier

Discover the dozen up-and-coming brands exhibiting in the Design Atelier for the first time.

DCA-student-cert-NJ1872x1052-2.png
Brought to you by
The True Power Behind the Counter: Why Sales Associates Are the Heart of the Jewelry Business

When investing in your jewelry business, it's important not to overlook the most crucial element of success: the sales associates.

Jack Abraham The Royal Ruby Collection
SourcingJun 05, 2025
A Rare Suite of Rubies Has Arrived in Las Vegas

The “Royal Ruby” Collection is a quintet of untreated rubies curated by collector Jack Abraham.

Weekly QuizJun 05, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Daymond John
Events & AwardsJun 05, 2025
Daymond John to Give Keynote at JCK Las Vegas

The entrepreneur and “Shark Tank” star will share his top tips for success.

Vaishali Banerjee and Pallavi Sharma
MajorsJun 05, 2025
Platinum Guild International Updates Leadership Team

Two existing executives have been given new roles.

Article Image 1.png
Brought to you by
Clienteling Isn’t a Buzzword. It’s an Essential Business Model.

More shoppers are walking out without buying. Here’s how smart jewelers can bring them back—and the tool they need to do it right.

Meredith Tiderington
Events & AwardsJun 05, 2025
Zillion Announces 'Women in STEM' Scholarship Recipient

Meredith Tiderington, an electrical engineering student, was selected for the award.

The Gemological Institute of America’s logo
Lab-GrownJun 04, 2025
GIA Reverting to More General Terminology for Lab-Grown Diamonds

It will quit assigning the stones specific color and clarity grades in favor of applying “new descriptive terminology.”

Exterior of the Venetian and the Las Vegas Sphere
Events & AwardsJun 04, 2025
As JCK Talks Returns, Don’t Miss These 12 Sessions

From design trends to sustainability, here’s a roundup of can’t-miss education sessions at JCK Las Vegas.

JCK show
CrimeJun 04, 2025
10 Safety Tips for the Las Vegas Shows

The Jewelers’ Security Alliance offers advice for those attending the annual trade shows.

Amy Curran
MajorsJun 04, 2025
Amy Curran Promoted at Hill & Co.

Her new role is director of strategic initiatives.

The eight rings in Viviana Langhoff’s AU79 jewelry collection
CollectionsJun 03, 2025
In Her Latest Collection, Viviana Langhoff Is Leaning Into Gold

The designer is embracing bold pieces with weight to them in “AU79,” a collection she celebrated with a creative launch party.

Gold and diamond bangles on a pair of jeans
FinancialsJun 03, 2025
Signet Jewelers Sees Turnaround in Q1 With Sales Ticking Up 2%

On an earnings call, CEO J.K. Symancyk discussed what’s working for the company and how it’s preparing for the potential impact of tariffs.

Woman’s hand holding shopping bags
SurveysJun 03, 2025
Consumer Confidence Improves in May

The index partially rebounded after months of decline, due in part to the U.S.-China deal to temporarily reduce import tariffs.

Dakota Johnson as Roberto Coin Brand Ambassador
CollectionsJun 03, 2025
Dakota Johnson Is Roberto Coin’s New Brand Ambassador

The actress stars in the latest campaign set in Venice, Italy, and is set to participate in other creative initiatives for the jeweler.

Gemfields ruby
SourcingJun 02, 2025
Gemfields’ June Auction to Include 36-Carat Ruby

The large stone will be offered at its June sale along with a selection of secondary-type rubies from a new area of the Montepuez mine.

Seaman Schepps pearl earrings
TrendsJun 02, 2025
Amanda’s Style File: Three Gems for June

Those born in June have a myriad of options for their birthstone jewelry.

David Allouche
SourcingJun 02, 2025
David Allouche Joins Grandview Klein Diamonds

The diamond industry veteran has been named its senior sales executive.

Movado Connect 2.0 watches
FinancialsMay 30, 2025
Movado’s Q1 Sales Slip Amid ‘Challenging’ Retail Environment

The company plans to raise the prices of select watches to offset the impact of tariffs.

Zoë Chicco Bracelets
Policies & IssuesMay 30, 2025
Tariffs & Designers: Navigating Pricing in an Unstable Environment

Between tariffs and the sky-high cost of gold, designers enter this year’s Las Vegas shows with a lot of questions and few answers.

Renato Cipullo Hematite Blaze Necklace
CollectionsMay 30, 2025
Piece of the Week: Renato Cipullo’s ‘Hematite Blaze’ Necklace

Designed by founder Renato and his daughter Serena Cipullo, it showcases a flame motif representing unity and the power of gathering.

Stock image of shipping containers
Policies & IssuesMay 30, 2025
Trade Court Declares Trump’s Tariffs Invalid

However, the tariffs remain in effect in the short term, as an appeals court has stayed the U.S. Court of International Trade’s decision.

Britney Spears
CollectionsMay 29, 2025
Britney Spears Files Trademark for New Jewelry Line

The pop icon is one step closer to launching her “B Tiny” jewelry collection, a collection she first began posting about last fall.

Inoveo Platinum Grain image.jpg
Supplier BulletinMay 29, 2025
Inoveo Platinum Grain, Exclusively Distributed by Stuller

Sponsored by Stuller

Grizzly Mining Pilala emerald
SourcingMay 29, 2025
Grizzly Auctions 6,620-Carat Emerald

It was featured in the miner’s latest sale, which brought in $24.8 million.

×

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