Lab-Grown

Effy Introduces Brand Dedicated to Lab-Grown Diamonds

Lab-GrownJan 08, 2025

Effy Introduces Brand Dedicated to Lab-Grown Diamonds

“Promise by Effy” includes fashion jewelry and engagement rings.

Rings in the Promise by Effy lab-grown diamond jewelry collection
In late December, Effy launched “Promise by Effy,” a brand dedicated to lab-grown diamond jewelry. Pieces in the collection are a mix of fashion and engagement rings, as seen here.
New York—Effy has launched a sub-brand of lab-grown diamond jewelry that will be sold at select locations.  

Called “Promise by Effy,” the brand is a mix of fashion jewelry—think huggie and stud earrings, tennis bracelets and necklaces, trendy rings, classic pendants—and ready-to-wear and custom engagement rings.  

In the release announcing the collection, Effy described the launch as the company “going all-in on lab-grown diamonds.”   

Effy already sells lab-grown diamonds in some of its jewelry, but “Promise by Effy” is a more extensive collection and a dedicated brand for the man-made stones.  

The company sees the launch of “Promise by Effy” as fulfilling two goals. 

First, it said, the brand meets consumers’ increasing demand for sustainable luxury goods.   

Effy said it sources the diamonds in “Promise” from “zero-emission foundries,” though it declined to share its exact sources.  

It stated only that the lab-grown diamonds in the collection are “grown in factories that adhere to strict emissions and environmental regulations.” 


The second goal the launch fulfills is it continues the late Effy Hematian’s vision of providing diamond jewelry to consumers at accessible price points.   

The jewelry in “Promise by Effy” ranges in price from $495 for a pair of 1-carat total weight round brilliant lab-grown diamond stud earrings set in 14-karat gold to $33,570 for a tennis necklace featuring nearly 30 carats of emerald-cut lab-grown diamonds. 
 
 Related stories will be right here … 

Prices for the collection’s ready-to-ship engagement rings range from about $3,000-$10,000. 

Custom “Promise by Effy” engagement rings also are available, and the brand’s website includes a ring builder. 

Select styles in the “Promise by Effy” collection are available at the Effy Hematian flagship store in New York City, while the full collection is available on the “Promise by Effy” website.  

The brand soon will be available at Effy stores on cruise ships.  

Once it is introduced on ships, which should be in a month or two, the company said all of its lab-grown diamond jewelry will be sold through the “Promise by Effy” brand name. 

The company said there are no plans to sell “Promise by Effy” via its other retail partners at this time.  


The Latest

Mugshots of four men
CrimeAug 04, 2026
Crew of Thieves Break Into Indiana Jeweler’s Home

Four men were charged in connection with the break-in and accused of stealing $365,000 in cash, jewelry, and designer goods.

André Branch
MajorsAug 04, 2026
Pandora Hires Former Signet Board Member to Lead North American Market

André Branch has more than 25 years of experience with various brands, most recently serving as CEO of Ariana Grande’s cosmetics company.

Gemlok earrings
MajorsAug 04, 2026
Sasha Primak Acquires Gemlok

New York-based atelier Gemlok is best known for creating the innovative “bridge” setting that became popular in the bridal market.

1872-x-1052-July-ad (1).png
Brought to you by
Why More Jewelry Retailers Are Hosting Turnkey Estate Buying Events

Retailers are seeking new ways to attract customers, increase traffic, and create revenue – Estate buying events are a popular solution.

Santana Now Unidad Collection Campaign Imagery
CollectionsAug 04, 2026
Musician Carlos Santana Launches Jewelry Brand

Santana Now's debut collection, “Unidad,” features symbolic motifs as well as pieces of wood from the Woodstock stage.

Weekly QuizJul 30, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Stock image of a gavel and books
CrimeAug 03, 2026
Florida Man Gets 15 Years in Trio of Jewelry Store Robberies

The 50-year-old man pleaded guilty earlier this year to robbing two jewelry stores and a pawn shop of more than $700,000 in merchandise.

Spider-Man Citizen watch and pin on a web
WatchesAug 03, 2026
Citizen's New Spider-Man Watch Is a Collector’s Dream

The watch’s dial features an original design by Marvel comics illustrator Adam Kubert.

Brought-To-By-Article-Top-Image.jpg
Brought to you by
Wedding Band Trends 2026: Personalization Takes Center Stage

Colored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.

Chatham Men’s Collection Campaign Imagery
CollectionsAug 03, 2026
Chatham Releases First Men’s Collection

The new collection of lab-grown diamond and colored gemstone jewelry provides a “fresh perspective” on the category, Chatham said.

Pomellato Marvelous Griffe earrings
TrendsAug 03, 2026
Amanda’s Style File: Spinel vs. Peridot

While some August babies are team peridot, the month's time-honored birthstone, others are team spinel, the newer alternative.

Edina Kiss Popsicle Pendant and Karina Choudhrie Ice Cream Charm
TrendsJul 31, 2026
These Pieces of the Week Are Sweet

Edina Kiss’ “Popsicle” pendant and Karina Choudhrie’s “Ice Cream” charm satisfy that summer craving for a sweet piece of jewelry.

Macy’s Herald Square store sign
MajorsJul 31, 2026
Macy’s Iconic Red Shopping Bag Sign Torn Down

The massive billboard has been in the same spot on the department store’s Herald Square flagship store for decades.

Gemfields emeralds
SourcingJul 31, 2026
Gemfields’ H1 Revenue Jumps 72%

The miner’s ruby and emerald auctions brought in a combined $102.9 million.

Stock image of a polished diamond being held by tweezers
SourcingJul 30, 2026
De Beers Sale in ‘Final, Most Challenging’ Phase, Anglo CEO Says

The goal is for the De Beers sale to be finished by the second half of 2026, with the subsequent approvals process expected to take a year.

U.S. Trade Representative Jamieson Greer and Jewelers of America President and CEO David Bonaparte in Washington, D.C.
Policies & IssuesJul 30, 2026
JA Heads Back to Washington as New Wave of Tariffs Takes Effect

David Bonaparte, along with Tim Haake and Ronnie VanderLinden, continue to lobby for tariff exemptions for diamonds, gemstones, and pearls.

Hands pushing shopping cart
SurveysJul 30, 2026
Consumer Confidence Slips in July

Survey respondents were concerned about the rising prices of food and groceries as well as unemployment.

Paola De Luca Presents Trendvision Book
Events & AwardsJul 30, 2026
Vicenzaoro Releases 2026 Education Lineup

The trade show, slated for Sept. 4-8 in Vicenza, Italy, will feature sessions on trends, AI, gemology, and manufacturing.

Jewels by Grace Hillsborough Show
Events & AwardsJul 30, 2026
Hillsborough Show Moves to New Location for 2026

The public shopping event featuring art, jewelry, watches, and rare collectibles, will take place in Santa Clara, California, this fall.

Endiama Commercial Director Elton Escrivão at the 2026 African Mining Indaba
EditorsJul 29, 2026
Q&A: The Past and Future of Angola’s Diamond Industry

Endiama Commercial Director Elton Escrivão knows people have a lot of misperceptions about Angola. He wants to change that.

Kevin Reilly PGI USA
MajorsJul 29, 2026
Kevin Reilly Retires After 39 Years in the Jewelry Industry

Reilly has been with PGI USA for the last 20 years, leading partnership development and professional education.

Pomellato Mandala Chromia necklace
FinancialsJul 29, 2026
Kering’s H1 Jewelry Sales Up 14%

Boucheron reached record sales while Pomellato found success in its signature collections.

United Flags of Fashion Arkansas Flag By Lauren Harwell Godfrey
Events & AwardsJul 29, 2026
Lauren Harwell Godfrey Designs a Flag for Arkansas

She was one of more than 120 American designers who created flags for the “United Flags of Fashion” project led by CFDA and Vogue.

The Retail Smiths partner and National Jeweler columnist Peter Smith 
ColumnistsJul 28, 2026
Peter Smith: Why Your Job Postings May Be Working Against You

Smith reveals the method The Retail Smiths use to help retailers and vendors write better job postings.

Tiffany & Co butterfly necklace
FinancialsJul 28, 2026
Tiffany & Co., Bulgari Lead the Way for LVMH in H1

LVMH’s jewelry and watch brands outperformed the company’s other divisions in an environment the company described as “disrupted.”

Lionheart Sacred Heart Charm Necklace
CollectionsJul 28, 2026
Lionheart’s New Collection Unites Spiritual Iconography

“Sacred Heart” features symbols like crosses, angel wings, the Star of David, and the evil eye as a representation of coexistence.

Events & AwardsJul 28, 2026
The Edge Funding 2 Scholarships Via 24 Karat Club SEUS

The scholarships will go to early-career professionals looking to study gemology, bench work and jewelry design, or store operations.

Mikimoto L'éclat high jewelry brooch
SurveysJul 27, 2026
Jewelry Leads Luxury Market Amid Stabilization, Bain Says

Bain & Company delved into the trends shaping the luxury market, the impact of AI, and more in its recent study.

×

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