GIA Examines All-Diamond Ring Cut From Single Lab-Grown Diamond
It’s the first time the lab has assessed a piece of this kind, it said.

Produced by Dutch Diamond Technologies in collaboration with Belgian jewelry store Heursel, the 4.04-carat ring was cut from an 8.54-carat lab-grown diamond plate created by using the chemical vapor deposition (CVD) process.
The band is 3.03 mm thick with an inner diameter of 16.35–16.40 mm and an outer diameter of 20.32–20.40 mm.
GIA said its development marks a “significant milestone in the world of carved single-crystal diamond rings.”
“Although this is not the first ‘ring’ of this type that has been reported, it is the first time GIA has evaluated a ring carved from a single laboratory-grown diamond,” said Tom Moses, executive vice president and chief laboratory and research officer at GIA.
“As technology continues to evolve with man-made diamond growth, we expect to see more creative ways for this product to be used. New achievements will advance the bounds of what is possible with laboratory-grown diamond, both in new applications in jewelry and technology.”
GIA published gemological observations about and spectroscopic features of the ring in an online research note.
The research note also will appear in the fall 2023 print edition of GIA’s quarterly professional journal, Gems & Gemology.
The Latest

Stores should expect to see the most customers on Nov. 27, and Christmas week is expected to be hectic too, as Dec. 25 falls on a Friday.

The charm, our Piece of the Week, features brown diamond frozen hot chocolate topped with white diamond whipped cream and a ruby straw.

The top lot of Elmwood’s recent fine jewelry sale in London was a 1.84-carat, D color Tiffany & Co. solitaire diamond ring.

Experience gemstones with greater precision and comfort than ever before.

The watch company agreed to sell a 95 percent interest to a group comprised of F.P. Journe, Chanel, and Swiss watch exec Pierre Jacques.


This round of tariff refunds is for importers that have sued over IEEPA tariffs in the Court of International Trade and won.

It revisits the brand’s most requested silhouettes, from "Pillow"-set necklaces and bracelets to "Signature"-set rings and earrings.

Submit your pieces for a chance to win in this year's competition.

The trade-only event includes buying opportunities as well as educational sessions on artisanal mining, the new Paraíba source, and more.

Ara Chanakian, a jeweler at Pattons, took home top honors in every category at Jewelers of Louisiana’s annual jewelry design competition.

The live charity benefit sale in Nashville will also feature gowns, boots, and other memorabilia from the country music legend.

Sponsored by Overnight Mountings

The supplier organization recently joined JA and JVC to have more input on political issues affecting the jewelry industry.

Blue Nile, a Signet Jewelers-owned brand, is now Royal Asscher’s exclusive licensed retailer in North America.

“Royal Oak” pays homage to the brand’s most popular watch model using 18-karat gold as well as diamonds, emeralds, and sapphires.

As part of the transition, Joseph Nicosia has stepped into the role of COO.

Participants now have until Oct. 14 to complete their submissions.

The alleged thieves used crow bars and sledgehammers to smash into jewelry stores across the state.

Ahead of the holidays, Smith urges jewelers to take a hard look at who’s buying jewelry, what they’re purchasing, and who’s stopped buying.

In the new consumer-facing campaign, four fashion and lifestyle creators share the stories behind their natural diamond pieces.

FGI President John Orrico is also leaving the company after more than 13 years.

The 2026 edition will feature presentations on alternative materials and design trends, as well as pop-up activations on the show floor.

It is the last fully operational diamond mine in Canada following the recent closures of Ekati and Diavik.

These jewels stood out at Bonhams’ sale of the cat-loving tech entrepreneur’s collection of objects depicting the feline form.

The fine jewelry brand has expanded the collection that debuted at Couture with four new designs based on its most popular styles.

The AGTA president was elected for a two-year term on the board of directors.

The partnership, a pledge to protect Africa’s Okavango River Basin, has been extended for an additional five years.























