RJC Is Developing a Standard for Lab-Grown Diamonds, Gems
It will be for all companies that deal in lab-grown materials.

The standard will be separate from RJC’s existing Code of Practices and will aim to establish best practices for the use of lab-grown diamonds and gems in jewelry. RJC said it will include social, environmental and business integrity requirements.
Executive Director Iris Van der Veken said developing a standard for lab-grown materials is important for the organization, as it underscores its goal of ensuring all jewelry is responsibly sourced, manufactured, and marketed.
“It is all about consumer confidence,” she said.
“This standard will provide a clear, robust framework not only for manufacturers and retailers, but also for reassuring customers that the manufacturers and sellers of [lab-grown materials] follow rigorous processes that ensure the credibility and transparency of their operations.”
The marketing of lab-grown diamonds, in particular, has been an issue in the past, with some companies not following Federal Trade Commission guidelines when advertising their products.
In the U.S., the FTC’s “Jewelry Guides” dictate that companies advertising lab-grown diamonds must use “clear and conspicuous” disclosure that appears in close proximity to the word “diamond.”
The FTC’s recommended terms are: laboratory-grown, laboratory-created or [manufacturer name]-created. Cultured can be used but has to be “immediately accompanied, with equal conspicuousness” by one of the three aforementioned terms; it cannot stand alone.
The Jewelry Guides also state that anytime the word “diamond” appears by itself in advertising, it must be referring to a natural diamond.
RJC announced development of the standard last week and said it will consult with all stakeholders and follow the ISEAL “Standard-Setting Code of Good Practices” in developing it. ISEAL is a global membership organization for sustainability systems like RJC, the Rainforest Alliance, and the Forest Stewardship Council (FSC).
Any and all interested parties are welcome to provide input and can contact RJC by sending an email to create@responsiblejewellery.com
The organization’s multi-stakeholder Standards Committee is managing the consultation and development process.
RJC said it will start developing its new standard in Q4 this year and expects to finish in Q2 2022. The standard will receive a "robust" review before it is finalized.
The Latest

Smith recalls a bit of wisdom the industry leader, who died last week, shared at a diamond conference years ago.

The “Victoria” necklace features a labradorite hugged by diamond accents in 18-karat yellow gold.

Two lower courts have moved to block the import taxes, which will remain in place as the legal battle continues.

Jewelers of America is leading the charge to protect the industry amidst rising economic threats.

The Kansas City Chiefs quarterback shares Hublot’s dedication to pursuing greatness, the Swiss watchmaker said.


The Type IIa stone, recovered from Botswana’s Karowe diamond mine last month, features unique coloration.

As a leading global jewelry supplier, Rio Grande is rapidly expanding and developing new solutions to meet the needs of jewelers worldwide.

From sunrise yoga to tariffs talks, these are some events to check out at the upcoming inaugural event.

Breitling is now the NFL’s official timepiece partner, a move that puts the brand in front of the millions of Americans who watch football.

NYCJAOS is set for Nov. 21-23 in New York City’s Chelsea neighborhood.

U.S.-based investment company SMG Capital LLC is the new owner of the luxury brand.

A new court filing details the locations of the stores that will close, as well as the 830 that will remain open.

The new catalogs are “Tools, Equipment, & Metals” and “Findings & Metals.”

Sapphire’s variety of colors make it the perfect birthstone for September.

The retailer has raised its guidance after seeing total sales increase 3 percent in the second quarter, beating expectations.

Niccolò Rossi di Montelera, executive chairman of the board, was appointed as interim CEO.

The three-floor space also features the jeweler’s largest VIP salon in Japan and offers an exclusive diamond pendant.

The collection is a collaboration between Stephanie Gottlieb Fine Jewelry and Oak and Luna, focusing on understated essentials.

The highlight of a single-owner jewelry and watch collection, it’s estimated to fetch up to $7 million at auction this December.

CEO Efraim Grinberg noted a resurgence in the fashion watch market.

The “Bullseye” necklace, with vintage bakelite and peridot, August’s birthstone, is the perfect transitional piece as summer turns to fall.

Sponsored by Clientbook

It will classify lab-grown stones into one of two categories, “premium” or “standard,” in lieu of giving specific color and clarity grades.

President Duma Boko addressed the country’s medical supply chain crisis in a recent televised address.

Former Free People buyer Afton Robertson-Kanne recently joined the retailer.

The jeweler teamed up with two local organizations for its inaugural “Back to School and Bling” event.