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

Hogback diamond ring
AuctionsJun 26, 2026
‘Hogback’ Diamond Ring Finds a New Home

A ring set with “hogback” diamonds, an early stone cut dating to around the 16th century, sold for more than $20,000 at a U.K. auction.

Kris Averi Rainbow Prism Thorn Ring
CollectionsJun 26, 2026
Strength Is Sharpened Into Beauty in Kris Averi’s ‘Prism Thorn’ Ring

The rainbow version of the ring, our Piece of the Week, features angel-cut, octahedral lab-grown sapphires designed to be worn as armor.

A tray of Rembrandt charms
MajorsJun 26, 2026
Rembrandt Charms Debuts ‘Charms That Give Back’

The new initiative donates a portion of the proceeds from select charms to charitable causes.

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.

Bernard James Knickerbockers Special Edition Aura Band
TrendsJun 26, 2026
Bernard James Celebrates Knicks’ Win with Ring

The Brooklyn-based jeweler created a limited-edition version of its “Aura” eternity band, set with gemstones in the team’s colors.

Weekly QuizJun 25, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Brandee Dallow
SourcingJun 25, 2026
ICA Names Brandee Dallow as CEO

Dallow will lead the International Colored Gemstone Association, effective July 6.

SCAD Jewelers Mutual Studio exterior
EditorsJun 25, 2026
Out & About: How Jewelers Mutual, SCAD Are Tackling the Bench Jeweler Shortage

Senior Editor Lenore Fedow headed to Savannah to learn more about the 10-year, $10 million partnership between JM and the art school.

DCA-NJ-article-1872x1052-060826.jpg
Brought to you by
Building the Future of Jewelry Retail: DCA Expands Education, Leadership Development, and Workforce Solutions

DCA is preparing the next generation of professionals by supporting workforce development, leadership growth, and career advancement.

Mejuri Steel Collection Campaign Imagery
CollectionsJun 25, 2026
Mejuri Experiments With Steel

Its new capsule jewelry collection features gold-finished stainless steel pieces designed for a maximalist look without a luxury price tag.

Watches and Wonders 2027
Events & AwardsJun 25, 2026
Watches & Wonders Announces 2027 Dates

The week-long event in Geneva is slated for April 2027.

New Gem Legacy board members Annie Doresca, Mark Smelzer, Sara Yood
SourcingJun 25, 2026
Annie Doresca, Mark Smelzer, Sara Yood Join Gem Legacy Board

The three industry leaders bring financial, communications, and legal expertise to the nonprofit’s board of directors.

Smart Age CEO and National Jeweler columnist Emmanuel Raheb
ColumnistsJun 24, 2026
The Revenue Hiding Between Your Counter and Your Online Cart

Jewelers are missing out by not offering this one key add-on at the online point of sale, Emmanuel Raheb writes.

Hyacinth Charm on Hackmanite Bead Strand, Peach Opal Bead Strand, Hydrangea Charm on Aquamarine Bead Strand
CollectionsJun 24, 2026
Greenwich St. Jewelers, Jewel Boxing’s Latest Drop Is On-Trend

The fourth collaborative collection from the retailer and jewelry content creator focuses on gemstone charms and strands of colorful beads.

“Elements” bracelet best of show AGTA Spectrum 2025
Events & AwardsJun 24, 2026
AGTA Accepting Entries for Spectrum 2026

This year’s AGTA Spectrum & Cutting Edge Awards will feature two new categories.

Columbia Gem House alexandrite
SourcingJun 24, 2026
Columbia Gem House To Offer Alexandrite Melee Online

The collection features traceable alexandrite from Brazil in calibrated sizes that is sorted by grade.

Dhaval Raja
MajorsJun 24, 2026
CaratLane Names New Chief Sales Officer

Dhaval Raja has been appointed to the role.

Francesca Villa On the Road Collection Race On Brooch and Long Road Necklace
CollectionsJun 23, 2026
Francesca Villa Goes ‘On the Road’

The capsule collection looks to vintage trunk pins that echo the spirit of speed, freedom, and the mythology of the American road trip.

A group of Paraiba tourmalines, two of which are possibly from Ethiopia
SourcingJun 23, 2026
New Paraíba Tourmaline Source Reportedly Discovered in Ethiopia

SSEF issued a notice about the potential new source of the sought-after gemstone, citing “credible reports” from trade sources.

Etsy Shop Other Jeffs campaign on a truck
MajorsJun 23, 2026
Etsy Says ‘Shop Other Jeffs’ This Prime Day

As Amazon Prime Day kicks off, Etsy is encouraging shoppers to support small businesses.

Cole Winward
Events & AwardsJun 23, 2026
AGA Announces 2026 Scholarship Winner

Cole Winward is the recipient of 2026 AGA Gemological Scholarship.

NeverNot Feel The Rhythm Boombox Pendant
EditorsJun 22, 2026
15 Pieces of Jewelry That Brought Us Joy in Vegas

Whether they evoked nostalgia, wonder, or laughter, these jewels put a smile on our faces.

Picture from press conference in Basel for new trade show, Basilia
Events & AwardsJun 22, 2026
Plans Announced for New Trade Show in Basel

Scheduled for April 2027, Basilia will be the first watch and jewelry trade show held in Basel since the collapse of Baselworld in 2020.

Gem Awards 2027 Logo
Events & AwardsJun 22, 2026
Gem Awards Opens 2027 Nomination Period

Submissions for the milestone 25th annual Gem Awards will be accepted across three categories from now through July 31.

Engineer Master II Snoopy Flying Ace Ball watch
WatchesJun 22, 2026
Snoopy Inspires New ‘Flying Ace’ Ball Watch

The beloved beagle dons his aviator outfit for the new Engineer Master II Snoopy Flying Ace timepiece.

Sotheby’s Paraiba tourmaline 7.70 carats
AuctionsJun 18, 2026
Paraíba Tourmalines Sell for $3.4M at Sotheby's

The recent high jewelry auction, which also featured the sale of a 10-carat blue diamond, was “a celebration of color.”

Almasika Le Cauri Endiamanté Drop Earrings
CollectionsJun 18, 2026
Michelle Obama Wears Almasika Earrings Symbolizing Feminine Power

She wore the “Le Cauri Endiamanté” earrings, our Piece of the Week, in the Obamas’ first dual portrait for the Obama Presidential Center.

Graphic for Episode 6 of My Next Question featuring Michelle Orman
PodcastsJun 17, 2026
Episode 6: Las Vegas 2026-Trends, Traffic, Broken Bathrooms

Couture’s Michelle Orman joins Amanda Gizzi and Michelle Graff for this special post-Market Week episode of My Next Question.

×

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