The National Jeweler editors revisit the most noteworthy industry happenings and design trends from 2025.
Sparkle Cut Now Offering Its Services to the Trade
The company uses a proprietary algorithm to cut micro-grooves into diamonds to brighten them without losing carat weight.

San Diego, Calif.—Sparkle Cut, the Silicon Valley startup that uses technology to create brighter diamonds, is now offering its services to the jewelry trade.
Sparkle Cut Technology involves cutting microscopic grooves into round diamonds to redirect beams of light through the table, increasing the stone’s sparkle without changing any of its structural integrity or losing any carat weight.
The company uses a proprietary algorithm to determine the exact location, number and depth of grooves needed in order to maximize brilliance.
The technique works with both natural and lab-grown diamonds of any color or clarity, as long as they’re round.
The company said it is working on developing the technology for fancy-shaped diamonds.
Now, Sparkle Cut has announced that, rather than developing a consumer-facing brand as originally intended, it’s looking to partner with manufacturers, wholesalers and retailers in the jewelry trade, offering its “Sparkle Improvement Service.”
The company said a well-known, multi-store retail jewelry chain will soon be stocking diamonds that have utilized Sparkle Cut.
Additionally, Sparkle Cut is in talks with manufacturers about licensing the technology.
RELATED CONTENT: Forget the 4 C’s. Meet the 3 S’s.
The company said its process is low-cost and determined by each diamond’s particular carat weight and volume.
Sparkle Cut envisions retailers being able to offer Sparkle Cut as a service to their customers to upgrade and improve their diamonds, or a company using the technology for their own private-label brand.
To demonstrate its claim that an I, J, or K color diamond that has received the Sparkle Cut treatment will outshine far more expensive, higher color and clarity stones, the company is sending interested parties a demo diamond.
Or, manufacturers can send up to five of their diamonds to Sparkle Cut’s facilities to receive the treatment and experience the before and after for themselves.
Co-Founder Patrick Hopf, who has invested in other innovative companies like the Sleep Number Bed, said of Sparkle Cut’s business-to-business pivot: “We realized we want to take our technology and make it available for all interested parties, not limit ourselves to competing as a brand. Everyone deserves diamonds with exceptional sparkle.”
Industry outsider Hopf is working with some jewelry veterans on the venture, including National Jeweler columnist Pat Henneberry.
The Latest

Need a gift for the cat lover who has everything? Look no further than our latest Piece of the Week.

It purchased the “Grosse Pièce,” an ultra-complicated Audemars Piguet pocket watch from the ‘20s, for a record-breaking price at Sotheby’s.

How Jewelers of America’s 20 Under 40 are leading to ensure a brighter future for the jewelry industry.

The lab-grown diamond grower now offers custom engagement and fashion jewelry through its Kira Custom Lab Jewelry service.


Chandler got his start at Michelson Jewelers and has served as DCA president and CEO since 2001. He will retire at the end of the month.

The boutique is slated to open this week inside Terminal 8, offering pre-owned Rolex watches and more to international travelers.

Roseco’s 704-page catalog showcases new lab-grown diamonds, findings, tools & more—available in print or interactive digital editions.

Sponsored by Digital Monitoring Products

The special-edition egg pendant ingested in a New Zealand jewelry store was recovered after a six-day wait.

Associate Editor Natalie Francisco plays favorites with Piece of the Week, selecting a standout piece of jewelry from each month of 2025.

The “Love and Desire” campaign is inspired by the magic that follows when one’s heart leads the way, said the brand.

Two awardees will receive free tuition for an educational course at the Swiss lab, with flights and lodging included.

Berta de Pablos-Barbier will replace Alexander Lacik at the start of January, two months earlier than expected.

Sotheby’s held its first two jewelry sales at the Breuer building last week, and they totaled nearly $44 million.

Winners will receive free registration and lodging for its fourth annual event in Detroit.

Here are six ideas for making more engaging content for Instagram Reels and TikTok, courtesy of Duvall O’Steen and Jen Cullen Williams.

The honorees include a notable jewelry brand, an industry veteran, and an independent retailer.

Carlos Jose Hernandez and Joshua Zuazo were sentenced to life without the possibility of parole in the 2024 murder of Hussein “Sam” Murray.

Yood will serve alongside Eduard Stefanescu, the sustainability manager for C.Hafner, a precious metals refiner in Germany.

The New Orleans jeweler is also hosting pop-up jewelry boutiques in New York City and Dallas.

Set in a Tiffany & Co. necklace, it sold for $4.2 million, the highest price and price per carat paid for a Paraíba tourmaline at auction.

The jeweler’s “Deep Freeze” display showcases its iconic jewelry designs frozen in a vintage icebox.

Take luxury gifting to new heights this holiday season with the jeweler’s showstopping 12-carat sphene ring.

This year's theme is “Unveiling the Depths of the Ocean.”

In its annual report, Pinterest noted an increase in searches for brooches, heirloom jewelry, and ‘80s luxury.

Starting Jan. 1, customers can request the service for opal, peridot, and demantoid garnet.





















