Lab-Grown Diamond Co. Green Rocks Building Factory in Israel
The 80,000-square-foot facility will be located just north of Nazareth.

Isrough, the diamond-growing company Israeli diamantaire Ofer Mizrahi started, is funding construction of the facility while Ofer Mizrahi Diamonds is the majority stakeholder in Green Rocks, which sells the diamonds to retailers.
Its new facility is located just north of Nazareth in Nof Hagalil, Israel, and will be 80,000 square feet in size upon completion, with room to expand to 100,000 square feet.
Details on the cost of the facility are not being released.
Expected to be fully operational by the first quarter of 2022, the Green Rocks factory will grow and cut “tens of thousands” of carats of “exceptional quality” diamonds per year.
Green Rocks said its diamonds are “as grown,” meaning they require no post-growth treatments to enhance their color or clarity, a rarity in the world of man-made diamonds.
The facility will use renewable sources of energy and is being constructed in order to be SCS-007 compliant upon completion. The 007 is SCS’s sustainability standard for the diamond industry.
It’s also being built in a city that is ethnically and religiously diverse but suffers from above-average unemployment rates in Israel.
“Sustainability is no longer about doing less harm; it’s about doing more good,” said Leon Peres, CEO of Green Rocks and former vice president of Ofer Mizrahi Diamonds. “It’s about quality of life for everyone.”
The facility will collaborate with academic institutions in the United States, Canada, and Europe to create internship and grant programs for the next generation of diamond scientists, Green Rocks said.
Green Rocks has offices in five countries, with headquarters in Aventura, Florida.
Retailers in nine countries, including the United States and Canada, carry its lab-grown diamonds.
The Latest

Simon Wolf shares why the time was right to open a new office here, what he looks for in a retail partner, and why he loves U.S. consumers.

Located in Valenza, the now 355,000-square-foot facility includes a new jewelry school that’s open to the public, Scuola Bulgari.

Paola Sasplugas, co-founder of the Barcelona-based jewelry brand, received the Fine Jewelry Award.

The risk of laboratory-grown diamonds being falsely presented as natural diamonds presents a very significant danger to consumer trust.

A platinum Zenith-powered Daytona commissioned in the late ‘90s will headline Sotheby’s Important Watches sale in Geneva next month.


The basketball stars wear men’s jewelry from the “Curb Chain” collection.

The Signet Jewelers-owned retailer wants to encourage younger shoppers to wear fine jewelry every day, not just on special occasions.

The 21 pieces, all from a private collector, will be offered at its Magnificent Jewels auction next month.

Lilian Raji answers a question from a reader who is looking to grow her jewelry business but has a limited marketing budget.

GCAL by Sarine created the new role to sharpen the company’s focus on strategic partnerships and scalable expansion.

The Indiana jeweler has acquired Scottsdale Fine Jewelers in Scottsdale, Arizona.

“Cartier: Design, Craft, and Legacy” opened earlier this month at the Victoria and Albert Museum in London.

Van Cott Jewelers in Vestal, New York, is hosting a going-out-of-business sale.

Industry veteran Samantha Larson has held leadership roles at Borsheims, McTeigue & McClelland, Stuller, and Long’s Jewelers.
The two organizations will hold the educational event together this fall in Mississippi.

The entrepreneur and “Shark Tank” star will share his top tips for success.

The Ukrainian brand’s new pendant is modeled after a traditional paska, a pastry often baked for Easter in Eastern European cultures.

The jeweler has announced a grand reopening for its recently remodeled location in Peoria, Illinois.

The “Strong Like Mom” campaign features moms who work at Tiffany & Co. and their children.

Interior designer Athena Calderone looked to decor from the 1920s and 1930s when crafting her first fine jewelry collection.

During a call about its full-year results, CEO Efraim Grinberg discussed how the company is approaching the uncertainty surrounding tariffs.

The feedback will be used to prepare other jewelers for the challenges ahead, the organization said.

The online sessions are designed to teach jewelers to use AI tools like ChatGPT and Claude to grow their business.

The opening marks the jewelry retailer’s first location in the Midwest.

The “United in Love” collection offers tangible mementos of hearts entwined with traditional and non-traditional commitment heirlooms.

Robert Goodman Jewelers will hold a “Black Jewelry Designers and Makers” event on April 27.