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 industry veterans join the podcast to discuss diamond marketing, the FTC Jewelry Guides, and lobbying for lower tariffs.

Murphy will retire at the end of the year and Alexander, currently the company’s president, will take over at the start of 2027.

The jeweler is encouraging customers who own lookalike rings to come into the store and trade them for credit towards an authentic piece.

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

The new campaign, “You Are The Occasion,” discourages shoppers from saving their fine jewelry for special occasions only.


Mehta led India’s GJEPC through the 2008 financial crisis and was respected worldwide for his wisdom, integrity, and knowledge.

One is the driver who allegedly crashed a car into a Sacramento jewelry store in April, striking a 71-year-old employee who later died.

Retailers are seeking new ways to attract customers, increase traffic, and create revenue – Estate buying events are a popular solution.

In a new column, Peter Smith posits that people actually enjoy putting together IKEA furniture, and the same is true for engagement rings.

9lakha Jewelers in Iselin, New Jersey, was the target of a smash-and-grab robbery on Aug. 8.

The exhibition will feature more than 100 drawings of stained-glass lampshades, windows, and more, many created by women and émigrés.

Marquise-cut diamonds in drop charms are the center of the new collection, reflecting the movement of a dancer in modular styles.

The inaugural Fort Lauderdale Jewelry, Antique, & Object Show will be held from Jan. 28 through Feb. 1, 2027.

The family-owned jeweler will open a new showroom in Bel Air, Maryland, this fall.

Amanda Ileana Hernandez is married to Carlos Hernandez, one of two men in prison for the 2024 murder of Michigan jeweler Hussein Murray.

The reimagined jewel, our Piece of the Week, trades the diamonds in the original 1998 design for blue, pink, yellow, and green sapphires.

Sponsored by American Gem Trade Association

In the United States, second-quarter sales were flat amid soft consumer sentiment and lower in-store traffic.

The 22-karat gold egg, sold at Batemans Auctioneers in the U.K., was part of a 1980s treasure hunt ad campaign for Cadbury Creme Eggs.

Lucara Diamond Corp., which recovered the “Motswedi” diamond from the Karowe mine, sold the stone for an undisclosed amount.

The expanded collections now feature hand-cut gemstones like topaz, tanzanite, chrysoprase, chalcedony, smoky quartz, and fire opal.

The gemstone supplier and manufacturer acquired the remarkable 104-gram Zambian emerald at Gemfields’ auction in May.

Two suspects offered to trade the woman a “winning” lottery ticket for her jewelry.

Finsch has been in business rescue since May, and owner Petra Diamonds said it sees no viable path forward for the mine.

Michel Patrick DeSalles was sentenced after pleading guilty to the 2017 murder of Omid Gholian, who owned a jewelry store in Manhattan.

Longtime industry executive Beth Miller has taken on the role.

The brooch was owned by Virginia Fortune Ryan Ogilvy, who served as a lady of the bedchamber to Queen Elizabeth II for nearly 50 years.

























