Effy Introduces Brand Dedicated to Lab-Grown Diamonds
“Promise by Effy” includes fashion jewelry and engagement rings.

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.
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

The top lot of the auction house’s Hong Kong jewelry sale was an Art Deco Mauboussin necklace with ruby beads, which sold for $2 million.

Retailers and manufacturers headed to the Capitol this week to discuss tariff exemptions for diamonds and gemstones, among other issues.

Our Piece of the Week is a pair of drop earrings from the “Sway” collection featuring Nanis’ first use of mirror-polished gold.

Experience gemstones with greater precision and comfort than ever before.

SynthDetect 2 can scan a full tray in less than five minutes, De Beers said, making it six times faster than its predecessors.


Two metal detectorists discovered the ring, which may have belonged to English noblewoman Matilda of Lancaster, in Suffolk.

The bill has a provision that allows the president to raise tariffs on countries that import Russian oil and gas to as much as 100 percent.

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

The American Gem Society presented the annual award to a former president of its board.

The “Chrysalis” capsule centers butterfly motifs representing growth, transformation, and the unfolding of who you are.

Jewelers of Louisiana presented Patton, the third-generation president of Pattons Fine Jewelry, with the award at its annual convention.

Two special guests join the podcast to commemorate the 10th anniversary of the designer advocate, mentor, and author’s untimely passing.

McCormack brings sea-inspired motifs from her “Beaches” collection to L’Objet’s tableware, vanity pieces, and first-ever cutlery set.

Nine New Jersey jewelers have been victims of smash-and-grab robberies this year, prompting JSA to circulate a list of recommendations.

Marlin “Brian” Hood, who has been with the store for 20 years, will succeed Ricky Bromberg, who died earlier this month.

The new bridal catalog features the latest jewelry collections and designs from timeless classics to modern silhouettes.

Stars wore either a necklace or earrings at 78th Primetime Emmy Awards but rarely both, Natalie Francisco notes.

Jennifer Shaheen compares this new era of AI-powered SEO to a video game: your website must clear one level before advancing to the next.

The program highlights “Made in Italy” fine jewelry with digital merchandising, sales education, and local marketing support.

Hilson, Signet’s chief operating and financial officer, discussed Q2, resurgent natural diamond demand, and why Blue Nile is a standout.

The stores that have a great December are the ones that made good decisions in August, September, and October, Sherry Smith writes.

The 22.09-carat fancy yellow “Pragnell Kimberley Sunshine Diamond” is part of the fall jewelry sale at Heritage Auctions.

“Adornos: Jewelry, Memory & What We Pass Down” honors the jewelry’s importance to New York City’s Latine communities.

The company’s managing director of sales said the results demonstrate “continued strong demand for commercial-quality emeralds.”

The nonprofit awarded a grant to the Gift of Sight initiative spearheaded by South African musician Black Coffee.

The Latine-owned New York jeweler is marking two milestones this year: its 50th anniversary and the 25th anniversary of the 9/11 attacks.

The jewelry retail broadcast network has sponsored a new space for Make-A-Wish East Tennessee on its campus in Knoxville.
























