IGI Finds 6-Carat ‘Natural’ Diamond Is Actually Lab-Grown
The submitted stone had been cut and polished with “meticulous precision” to match a natural diamond report, the lab said.

The International Gemological Institute said it analyzed and graded a 6.18-carat round brilliant diamond stone at its Bangkok lab that had been submitted for verification.
It came with a report from the Gemological Institute of America stating it was a natural diamond of D color, flawless clarity, and triple excellent cut, but IGI established it was, in fact, a lab-grown diamond.
The lab’s gemologists realized the natural stone had been swapped with a lab-grown diamond, which had been cut and polished to match the GIA report’s data with “meticulous precision previously never seen.”
Additionally, the stone had been inscribed with a counterfeit report number, an issue GIA has been battling as of late.
“At IGI, we have seen a huge increase in double verification demand, which means before going for a major purchase, consumers like to receive confirmation that the stone matches the original report,” IGI Thailand and Hong Kong Managing Director Bob Van Es said.
The Latest

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 in Salisbury, Maryland, is set to close as its owner, Jeff Cassels, retires.

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

Supplier Spotlight Sponsored by GIA

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


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

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

Six new retail businesses were selected for the 2025 program, which began in January.

Ten organizations were selected this year.

Kim Carpenter and Sam Gevisenheit have joined the brand.

“Shell Auranova” is the next generation of the brand’s bridal line, featuring half-bezel engagement rings with bold and fluid designs.

Boucheron and Pomellato performed well in an otherwise bleak quarter for Kering amid struggles at Gucci.

Designer Deborah Meyers created her birds from oxidized sterling silver, rose-cut diamond eyes, and Akoya Keshi pearl feathers.

The company said it expects sightholders to remain “cautious” with their purchasing due to all the unknowns around the U.S. tariffs.

Sponsored by the Gemological Institute of America

Simon Wolf shares why the time was right to open a new office here, what he looks for in a retail partner, and why he loves U.S. consumers.

A third-generation jeweler, Ginsberg worked at his family’s store, Ginsberg Jewelers, from 1948 until his retirement in 2019.

The company failed to file its quarterly reports in a timely manner.

The organization also announced its board of directors.

Charms may be tiny but with their small size comes endless layering possibilities, from bracelets to necklaces and earrings.

Located in Valenza, the now 355,000-square-foot facility includes a new jewelry school that’s open to the public, Scuola Bulgari.

Paola Sasplugas, co-founder of the Barcelona-based jewelry brand, received the Fine Jewelry Award.

A platinum Zenith-powered Daytona commissioned in the late ‘90s will headline Sotheby’s Important Watches sale in Geneva next month.

The basketball stars wear men’s jewelry from the “Curb Chain” collection.

The Signet Jewelers-owned retailer wants to encourage younger shoppers to wear fine jewelry every day, not just on special occasions.

The 21 pieces, all from a private collector, will be offered at its Magnificent Jewels auction next month.

Lilian Raji answers a question from a reader who is looking to grow her jewelry business but has a limited marketing budget.