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

Namibia has formally signed the Luanda Accord, while two key industry organizations pledged to join the Natural Diamond Council.

Lady Gaga, Cardi B, and Karol G also went with diamond jewelry for Bad Bunny’s Super Bowl halftime show honoring Puerto Rico.

Jewelry is expected to be the No. 1 gift this year in terms of dollars spent.

Launched in 2023, the program will help the passing of knowledge between generations and alleviate the shortage of bench jewelers.

As star brand Gucci continues to struggle, the luxury titan plans to announce a new roadmap to return to growth.


The new category asks entrants for “exceptional” interpretations of the supplier’s 2026 color of the year, which is “Signature Red.”

The White House issued an official statement on the deal, which will eliminate tariffs on loose natural diamonds and gemstones from India.

Criminals are using cell jammers to disable alarms, but new technology like JamAlert™ can stop them.

Entries for the jewelry design competition will be accepted through March 20.

The Ohio jeweler’s new layout features a curated collection of brand boutiques to promote storytelling and host in-store events.

From heart motifs to pink pearls, Valentine’s Day is filled with jewelry imbued with love.

Prosecutors say the man attended arts and craft fairs claiming he was a third-generation jeweler who was a member of the Pueblo tribe.

New CEO Berta de Pablos-Barbier shared her priorities for the Danish jewelry company this year as part of its fourth-quarter results.

Our Piece of the Week picks are these bespoke rings the “Wuthering Heights” stars have been spotted wearing during the film’s press tour.

The introduction of platinum plating will reduce its reliance on silver amid volatile price swings, said Pandora.

It would be the third impairment charge in three years on De Beers Group, which continues to grapple with a “challenging” diamond market.

The Omaha jewelry store’s multi-million-dollar renovation is scheduled to begin in mid-May and take about six months.

The “Paradise Amethyst” collection focuses on amethyst, pink tourmaline, garnet, and 18-karat yellow gold beads.

The retailer credited its Roberto Coin campaign, in part, for boosting its North America sales.

Sherry Smith unpacks independent retailers’ January performance and gives tips for navigating the slow-growth year ahead.

From how to get an invoice paid to getting merchandise returned, JVC’s Sara Yood answers some complex questions.

Amethyst, the birthstone for February, is a gemstone to watch this year with its rich purple hue and affordable price point.

The Italian jewelry company appointed Matteo Cuelli to the newly created role.

The manufacturer said the changes are designed to improve speed, reliability, innovation, and service.

President Trump said he has reached a trade deal with India, which, when made official, will bring relief to the country’s diamond industry.

The designer’s latest collection takes inspiration from her classic designs, reimagining the motifs in new forms.

The watchmaker moved its U.S. headquarters to a space it said fosters creativity and forward-thinking solutions in Jersey City, New Jersey.
























