Lab-Grown

RJC Is Developing a Standard for Lab-Grown Diamonds, Gems

Lab-GrownSep 27, 2021

RJC Is Developing a Standard for Lab-Grown Diamonds, Gems

It will be for all companies that deal in lab-grown materials.

2021_Lightbox factory 1.jpg
The Responsible Jewellery Council said it is developing a standard for lab-grown diamonds and gems. It will be available for all companies dealing in lab-grown materials, like De Beers Group, which grows diamonds at its factory outside Portland, Oregon, pictured here. (Photo courtesy of De Beers Group)
London—The Responsible Jewellery Council announced last week it is in the process of developing a standard for manufacturers and retailers that deal in lab-grown diamonds and gems.

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.” 

 Related stories will be right here … 

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

Cristiano Ronaldo and Stephanie Gottlieb Ring
TrendsAug 13, 2025
Cristiano Ronaldo Proposes With Gigantic Oval-Cut Diamond

Model Georgina Rodríguez received a rock of an engagement ring, with her diamond estimated to be 35 carats, experts say.

International Colored Gemstone Association logo
SourcingAug 13, 2025
ICA Names 2025 Board of Directors

The board elected 9 new directors at its recent ICA Congress in Brazil.

Whiskey Barrel Ring
TrendsAug 13, 2025
Colorado Jeweler, Whiskey Maker Collab on Ring Giveaway

Three winners will receive a custom ring from Honest Hands Ring Co. inlaid with a piece of history from Denver-based distillery Stranahan’s.

rio-article photo-diamond.jpg
Brought to you by
Taking the Moment Head On: How Rio Grande Champions the Present & Future of Fine Jewelry

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

People shopping in a mall
SurveysAug 13, 2025
These Are The 25 Hottest Retailers, Says NRF

JD Sports and Wawa were among the fastest-growing retail companies in the U.S. last year.

Weekly QuizAug 08, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Columbia Gem House Winza sapphires and rubies
SourcingAug 13, 2025
Columbia Gem House Launches Winza Sapphires, Rubies

The new inventory, all untreated, features vibrant hues and unique bicolor combinations.

Gemfields Faberge
SourcingAug 12, 2025
Gemfields Sells Fabergé for $50M

Acquired by a tech investor, the historic brand will continue to focus on jewelry, accessories, and timepieces.

an instructor and a student in a bench jewelry classroom
Brought to you by
Investing in the Next Generation of Bench Jewelers

The Seymour & Evelyn Holtzman Bench Scholarship from Jewelers of America returns for a second year.

Shipping containers on a ship
Policies & IssuesAug 12, 2025
Higher Tariff on Chinese Imports Paused for 90 Days, Trump Says

President Donald Trump issued an executive order extending the pause on higher tariffs to November as negotiations with China continue.

Jacquie Aiche Thunderbird Slab Collection Campaign
CollectionsAug 12, 2025
Jacquie Aiche’s New Collection Harnesses the Energy of the Thunderbird

The “Thunderbird Slab” collection features a thunderbird motif as a symbol of power, protection, and boundless possibility.

Duvall O’Steen and Jen Cullen Williams
ColumnistsAug 12, 2025
Creative Connecting: How to Take a Better Headshot

Columnists Jen Cullen Williams and Duvall O’Steen share tips on how to elevate your professional image.

Vigil for slain Wheat Ridge, Colorado jeweler Peter Damian Arguello
CrimeAug 11, 2025
Man Convicted of First-Degree Murder in Death of Colorado Jeweler

Peter Damian Arguello, a jeweler in the Denver suburb of Wheat Ridge, was found dead inside his store in November 2023.

Lisa Bridge
IndependentsAug 11, 2025
Lisa Bridge to Depart Ben Bridge Jeweler

The retailer, owned by Berkshire Hathaway, is becoming part of the Berkshire Hathaway Jewelry Group with Helzberg.

Bethenny Frankel
Events & AwardsAug 11, 2025
Bethenny Frankel to Give Keynote at CBG’s Experience Show

The Continental Buying Group’s 2025 Tampa Experience Show is slated for Sept. 8-10.

Nora Kühner fashion design consulting trend forecast colors 2027
EditorsAug 11, 2025
The Colors Expected to Be On-Trend in a Couple Years

Associate Editor Lauren McLemore recently attended a fabrics trade show where a trend forecaster shared her predictions for summer 2027.

Brilliant Earth Jolie Mosaics engagement ring
FinancialsAug 08, 2025
Brilliant Earth’s Q2 Sales Up 3% as Engagement Ring Sales Rise

The company raised its full-year sales guidance while noting it has not yet assessed the potential impact of the latest tariff news.

Jewellers for Hope charity event
Events & AwardsAug 08, 2025
GJEPC’s Jewellers for Hope Celebrates 10 Years of Fundraising

The organization has raised more than $1.3 million for charity since its inception.

Rahaminov Diamonds Emerald-Cut Diamond Bezel Bangle
TrendsAug 08, 2025
Piece of the Week: Rahaminov Diamonds’ Bezel Bangle

The brand’s latest iteration of a bezel-set diamond bangle features clean lines and a timeless design for a new modern silhouette.

Black and white photo of Tony Bennett near a microphone
WatchesAug 07, 2025
Bulova’s New Collection Honors Tony Bennett

The first watch in the series commemorates his participation in the Civil Rights movement, marching from Selma to Montgomery in 1965.

Rembrandt Blue Jay, Hummingbird, Cardinal Bird Charms
TechnologyAug 07, 2025
Rembrandt Charms Debuts New Website, Bird Charms

The company added a retailer dashboard to its site and three new birds to its charm collection, the cardinal, blue jay, and hummingbird.

Shipping containers on a ship
Policies & IssuesAug 06, 2025
Tariff on India to Rise to 50%, Trump Says

An additional 25 percent tariff has been added to the previously announced 25 percent.

Claire’s storefront
MajorsAug 06, 2025
Claire’s Files for Chapter 11 Bankruptcy Again

The jewelry and accessories retailer plans to close 18 stores as part of the proceedings.

Smith & Son Jewelers storefront Springfield Massachusetts
IndependentsAug 06, 2025
Smith & Son Jewelers to Close 107-Year-Old Location

Its Springfield, Massachusetts, store is set to close as owner Andrew Smith heads into retirement.

Zahn-Z Beluga Spout Grey Spinel Ring and Beluga Spout Mandarin Garnet Ring
CollectionsAug 06, 2025
Zahn-Z Swims With Whales in ‘Beluga’ Collection

Designer Hiba Husayni looked to the whale’s melon shaped-head, blowhole, and fluke for her new chunky gold offerings.

Paola De Luca presenting Trendbook 2026+ at Vicenzaoro
TrendsAug 06, 2025
Paola De Luca to Release Trendbook 2027+

She will present the 23rd edition of the trend forecasting book at Vicenzaoro on Sept. 7.

Omar Roy mugshot
CrimeAug 05, 2025
Report: Suspect Arrested in 1992 Murder of Miami Jeweler

Omar Roy, 72, was arrested in connection with the murder of jeweler Dionisio Carlos Valladares.

Mignon Faget Beyond Katrina Pendant and Beyond Katrina Pin
CollectionsAug 05, 2025
Mignon Faget Commemorates 20th Anniversary of Hurricane Katrina

The New Orleans-based brand’s “Beyond Katrina” jewels honor the communities affected by the storm.

×

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