Lightbox Goes Larger With 2-Carat Lab-Grown Diamonds
The De Beers-owned brand also debuted a new category of high-quality lab-grown stones called “Finest.”

The De Beers-owned brand announced an expansion to its offerings to include sizes up to and including 2 carats.
The pink, blue, and white lab-grown diamonds will still be priced at $800 per carat, as has been Lightbox’s structure from the start.
The brand said it expects to add stone cuts and jewelry silhouettes in 14-karat gold early next year.
Concurrent with the news of the larger sizes, Lightbox also introduced “Finest,” a proprietary diamond engineering process developed by the brand that combines its existing CVD synthesis technology with a “further leading refinement” to enhance the stones’ color.
“Finest” stones are VVS clarity, colorless (D, E, or F in color), and have an excellent cut.
Lightbox said the same technique is also applied to fancy color diamonds in the range, refining the saturation and consistency of the blue and pink lab-grown stones.
Each “Finest” diamond will be laser-inscribed with a unique quality mark just under the table, invisible to the naked eye but visible with a 10X loupe.
Each stone also will come with its own “quality guarantee” detailing its cut, color, and clarity, which Lightbox said serves as its warranty for customer assurance.
Pricing for "Finest” follows a linear model like the one already set by Lightbox, with 1-carat stones priced at $1,500 plus the cost of setting.
It will only offer “Finest” stones up to 1 carat in size to be consistent with its belief that “the real, long-term opportunity for lab-grown diamonds is in accessibly priced jewelry at or below $2,000,” Lightbox said in a release.

The “Finest” range includes pink, blue, and white lab-grown diamonds available in pendant and earring styles in 18-karat gold.
Originally slated to launch in 2022, the introduction of the 2-carat offerings from Lightbox and “Finest” were accelerated by the opening last fall of Lightbox’s $94 million, 60,000-square-foot manufacturing lab in Gresham, Oregon.
They will launch in late October on the Lightbox website followed by a broader rollout to both brick-and-mortar and online retail partners early next year.
“Our incredible team continues to push the boundaries on lab-grown diamond engineering technology, and thanks to our 50 years of experience, pioneering approach, IP portfolio, and state-of-the-art manufacturing facility in Gresham, we have the capability to now take the next steps in expanding our lab-grown diamond product range to include stones of larger size and even higher qualities,” said Lightbox CEO Steve Coe.
“This enables us to bring our fair and transparent linear pricing model to lab-grown diamonds up to 2 carats in size and offer superior value to our customers over an extensive range of stone sizes and qualities. For size, quality and pricing, Lightbox is leading the way.”
The Latest

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.

Bench jewelers spend years honing their skills, Jewelers of America’s Certification validates their talents.

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.

The announcements follow a tumultuous start to 2025 for WJA, which saw a wave of resignations following controversial statements about DEI.

Editor-in-Chief Michelle Graff answers questions about how the new taxes levied on countries like India and China will impact the industry.

Kenewendo, Botswana’s minster of minerals and energy, discusses closing the deal with De Beers and the work that was missed along the way.

The historic fancy vivid blue diamond set to headline Christie’s Geneva sale next month could sell for up to $50 million.

LVMH CFO Cécile Cabanis also discussed the effects of tariffs so far.

The “Mad Men” and “The Morning Show” star steals jewelry, art, and handbags from his wealthy neighbors in “Your Friends & Neighbors.”

The organization has reelected Kalpesh Jhaveri as president.

An investigation found that the former managing director of Movado’s Dubai branch overstated and prematurely recorded sales.

The collection pays tribute to the Japanese philosophy of Ma, studying balance, stillness, and the interplay between presence and absence.

Mari Lou’s Fine Jewelry in Orland Park, a suburb of Chicago, is closing its doors.

GIA’s labs in Dubai and Hong Kong are now accepting larger diamonds in light of the “logistical challenges” presented by the new tariffs.

These earrings by Van Cleef & Arpels, featuring the same design as a pair worn by Princess Grace, are up for auction at Woolley & Wallis.

Two experts share how artificial intelligence tools can help retailers run a more efficient business.

Kentaro Nishimura, who has been with the pearl company since 1997, has been promoted to president and CEO of Mikimoto America.