Editors

Forget the 4 C’s. Meet the 3 S’s.

EditorsFeb 08, 2019

Forget the 4 C’s. Meet the 3 S’s.

A Silicon Valley startup wants to shake up the way consumers think about diamonds, and it’s got nothing to do with lab-grown stones.

20190208_SparkleCut-header.jpg
Sparkle Cut, a new company led by an innovative group of Silicon Valley investors and entrepreneurs, wants consumers to think differently about how they buy diamonds. (Image courtesy of Sparkle Cut)

How many times has the average engagement ring owner looked at their diamond through a jeweler’s loupe?

Personally, I haven’t once, and a new Silicon Valley-based startup is banking on the idea that most brides won’t.

Sparkle Cut, founded and run by a group of tech venture capitalists, is selling diamonds that have undergone a proprietary technique of the same name in which micro-grooves are cut into the lower pavilion of the stone.

“It allows the light that would normally leave the bottom of the diamond to be sent back up through the table,” explained Sparkle Cut CEO Jo Lawson when I met with her in January.

The result is a diamond that sparkles more than one would imagine based on its lab report.

“We think the 4 C’s are valuable because it’s a baseline. But … that baseline needs a jeweler’s loupe.” – Jo Lawson, Sparkle Cut CEO

The nano-cuts, which are approximately 1/50 the size of a human hair, are invisible not only to the human eye but also under 30x magnification. They don’t affect a stone’s carat weight, nor any of its graded characteristics.

I had the chance to see about a dozen Sparkle Cut stones in person—all J and K color, 1- and 1.5-carat round brilliant diamonds set in finished engagement rings— and they do appear to be much brighter and lighter, more consistent with the G-I color range.

“Our claim to fame is that we can take any diamond, no matter what the 4 C’s are, and make them look more spectacular,” said Lawson.


Sparkle Cut launched in November and is focused on playful, tongue-in-cheek marketing and bright visuals to attract a modern engagement ring customer.

“We’ve found that brides care about size and sparkle. To keep the cost reasonable for a really highly graded, sparkly diamond means you typically have to sacrifice size.”

To battle this conundrum, Sparkle Cut wants consumers to focus on a different set of diamond-grading criteria, its trademarked 3 S’s—size, shape, and sparkle.

Lawson elaborated: “We love tradition and we think the 4 C’s are really valuable because it’s a baseline. But what we want to teach people is that that baseline needs a jeweler’s loupe and what they need to trust is how they feel about the ring. Seeing is believing. When I show people these diamonds they’re so surprised at how much they sparkle, (regardless of their grade).”

Sparkle Cut officially launched in November, selling directly to consumers on SparkleCut.com.

The site currently sells loose diamonds, finished diamond engagement rings via its online ring builder and diamond stud earrings.

All the stones are round brilliants between about 0.5-1.5 carats and most are in the J-K range, which the company says is the sweet spot for leveraging the most improvement and increased value with the sparkle cut technology.

The average retail price for an item on the site is between $3,000 and $10,000 but sales so far have ranged between $750 and $35,000, as Sparkle Cut allows for special orders for larger diamonds and settings not available on the website; the company also will apply the sparkle cut technology on a diamond that a consumer already owns.

This emphasis on customer service is indicative of how the company is approaching online-only sales—they want to make the experience as personal and high-touch as possible. Every piece sold comes with a lifetime warranty and can be returned in the first 40 days after purchase, no questions asked.

As the technology—which is native to the biotech and semiconductor industries develops, Sparkle Cut will move into fancy shapes, which Lawson predicts will be “super disruptive,” since they traditionally aren’t able to match the sparkle of a round brilliant.


Sparkle Cut’s website, in which consumers can build their own engagement rings, as well as purchase loose diamonds and finished diamond stud earrings, features 360-degree views of its stones, where you can even see a stone’s inclusions. Lawson said the inclusions are reminders of the stones’ “incredible formation journeys.”

Sparkle Cut hand-selects its diamonds from dealers in India before applying the sparkle cut technology in Florida, where it's legally headquartered. All of its stones are graded by either GIA or IGI.

Lawson said that other companies have tried similar techniques in the past, but none worked like Sparkle Cut. “There are others that do similar things,” she explained. “They cut around the pavilion, but you can see the cuts with the naked eye.”

GemEx, the company that quantifies and measures a diamond’s light performance, gave several Sparkle Cut diamonds its highest possible score.

"We scientifically measure the amount of sparkle a diamond generates,” explained GemEx CEO Randall Wagner. “A number of Sparkle Cut’s diamonds have achieved our highest sparkle rating, and many of their other diamonds are not far behind.”  

One of Sparkle Cut’s best endorsements, though, is Lawson herself.


Jo Lawson

She spent a decade at Apple running global teams across communications, customer experience, and retail. After founder Steve Jobs died she moved to Movado where she launched the company’s wearables division.

Sparkle Cut brought Lawson out of retirement because she recognized, just as she was trained to at Apple, that the technology benefits the end user in a non-traditional way; rather than training consumers how to pick the most “ideal” diamond according to industry standards, Sparkle Cut aims to deliver consumers the diamonds they want at better prices.

“I come in from the technology and luxury goods side of it, but I’ve never been in diamonds,” Lawson said. “My first question is always: Do customers care and how does this help a customer? Because if customers don’t care, I don’t have to spend time on it.”

It’s an attitude that relies on innovation, rather than following industry formulas, a value shared by the company’s co-founders who recruited Lawson: Pat Hopf—a venture capitalist and entrepreneur executive who specializes in early-stage companies disruptive to their industries, such as the Sleep Number bed—and Mark de Naray—Sleep Number bed’s former CEO who grew the business from less than a million in sales to more than $160 million.

“We don’t even know how to follow the formula,” Lawson told me. “The founders and original investors really believe in the product. We’re starting from solving a problem that exists, which is that everyone wants a more sparkly diamond. So we’re addressing something that’s really valuable to the customer, contextualizing it and letting them learn that what they value is what they should pay for.”

Though Sparkle Cut takes a non-traditional approach to assessing diamonds and amplifying their shine, the company is ultimately building upon the same emotional and cultural base that all fine jewelry relies upon—that a diamond’s formation deep in the earth over millions of year is miraculous and that jewelry is sentimental, meant to mark some of life’s big occasions and be passed down through families.

“What really excited me about Sparkle Cut was how we’re applying technology to a traditional, ethically mined diamond,” Lawson said. “Lab-grown diamonds are obviously highly technical but were using Sparkle Cut technology with naturally mined diamonds, just making them a little bit more beautiful.”

Lawson said that the company plans to host trunk shows and in-person Sparkle Cut events in the future. It’s also open to wholesale and white-label possibilities or letting industry members purchase the technology to give all of their diamonds the sparkle cut.

“One of the reasons I was compelled to join the company is because this has long legs. There are lots of directions this proprietary cut could go.”

Ashley Davisis the senior editor, fashion at National Jeweler, covering all things related to design, style and trends.

The Latest

The 1916 Company Coast to Coast Roadshow
WatchesJun 03, 2026
The 1916 Company Taking Pre-Owned Rolexes on the Road, Again

The retailer is bringing Rolex Certified Pre-Owned watches to five U.S. cities in 2026 for collectors to see, try on, and purchase.

Jessica Alba in Gabriel & Co. campaign
IndependentsJun 03, 2026
Jessica Alba Is the New Face of Gabriel & Co.

The actress and entrepreneur stars in the jeweler’s new campaign that celebrates life’s quiet moments.

Anna Maccieri Rossi Ora Wood Sunrise Cuff, Marie Lichtenberg High Jewelry Bandana, Anna Maccieri Rossi Carpe Diem Pendant
TrendsJun 03, 2026
State of Design: Only the Innovative Will Survive

The price of gold has risen, affecting the number of pieces designers make, the materials they use, and how they position themselves.

PG-05-SHOT-2-LUCIDA.033 1.png
Brought to you by
All Eyes on Gold Prices. Alternatives to Look For. And What to BEWARE of in Vegas

As gold prices rise, today’s retailers are looking for alternatives at prices that will appeal to wider audiences.

Woman with crossed hands and rings on fingers
FinancialsJun 02, 2026
Signet Jewelers’ Q1 Sales Up 2% As It Focuses on ‘Core Four’

The jewelry retailer is zeroing in on Zales, Jared, Kay Jewelers, and Blue Nile as it looks to create unique brand identities for each.

Weekly QuizMay 28, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Dr. Akinwumi Adesina, chairperson of the Diamonds for Development Fund
SourcingJun 02, 2026
Leader Appointed for Botswana’s Diamonds for Development Fund

Dr. Akinwumi Adesina, a development economist, will head the fund created to help Botswana diversify its economy.

James Marks
WatchesJun 02, 2026
Watch Industry Veteran James Marks Joins Sotheby’s

Sotheby’s has appointed the former Phillips executive as its global head of private sales and retail in its watches division.

1872x1052-NextGem-2026-National-Jeweler-Advertorial.jpg
Brought to you by
How Modern Training Is Becoming a Competitive Advantage for Jewelry Retailers

With the trade and customer trust in mind, GIA® developed NextGem™ – on-demand training designed specifically for retail.

Sothebys 10-carat blue diamond, 120 carat Harry Winston diamond necklace
AuctionsJun 02, 2026
Sotheby’s to Auction 10-Carat Blue Diamond, 1960s Harry Winston Necklace

A private collection of five Paraíba tourmalines also will be up for sale at Sotheby’s High Jewelry auction in New York, scheduled for June 16.

People shopping in a jewelry store
IndependentsJun 02, 2026
State of Retail: 6 Things Retailers Should Know About Consumers Today

From Gen Z’s view of luxury to “doom spending,” these are the six consumer trends to note this year.

Zahn-Z Big Zaha Art Deco Ring
Events & AwardsJun 01, 2026
Design Atelier Brands Have a Big Night at Emotional Couture Design Awards

The show started by honoring Mildred Marcano, ended with a tearful Beth Anne Bonanno, and recognized a dozen-plus designers in between.

Rapaport's rebranding
SourcingJun 01, 2026
RapNet Rebranding as Rapaport Trade

The revamped online diamond marketplace will feature pricing intelligence and data-driven tools for more efficient buying and selling.

Gemfields emeralds
SourcingJun 01, 2026
Gemfields’ Higher-Quality Emerald Auction Achieves $26.8M

The miner said demand for higher-quality emeralds is stable, but there is notable caution in the market.

Cultus Artem River of Heaven Necklace
CollectionsMay 29, 2026
Cultus Artem’s Necklace Is the Oasis in Las Vegas’ Desert

The “River of Heaven” necklace, our Piece of the Week debuting at Couture, combines 26 salt and pepper diamonds spaced by Tahitian pearls.

Sean Dunn, Amy Greenberg, Elise Greenberg, Coleman Clark, Mitchell Clark
IndependentsMay 29, 2026
Meet the 2026 Retailer Hall of Fame Inductees

This year’s inductees include second-, third-, and fourth-generation jewelers.

Jesse Itzler
Events & AwardsMay 28, 2026
JCK Announces Jesse Itzler as 2026 Keynote Speaker

The author, speaker, and entrepreneur will give his presentation, “Spiritual Billionaire,” on Saturday morning.

JCK Rocks Nelly Graphic
Events & AwardsMay 28, 2026
JCK Rocks To Ride With Nelly

Three-time Grammy award-winning artist Nelly is set to perform at the annual event at Tao Beach on Sunday night.

A screen shot of The Clear Cut's website
MajorsMay 28, 2026
Signet Jewelers to Buy The Clear Cut

Signet will integrate the online-only, natural diamond-focused jeweler into Blue Nile, which it wants to position as a higher-end retailer.

Itä Aguaviva Tassel Pendant, Ashaha Anzar Cuff, Cultus Artem Quetzal Ring
CollectionsMay 28, 2026
Meet The 17 Newcomers to Couture’s Design Atelier

These up-and-coming jewelry brands are bringing their distinct aesthetic and unique point-of-view to the Design Atelier for the first time.

GCAL 8x Cushion Cut diamond
GradingMay 28, 2026
GCAL By Sarine Launches 8X Cushion Cut

The lab’s proprietary diamond cut grade has been expanded to include the popular fancy shape.

Stock image of police cars with their lights on
Events & AwardsMay 27, 2026
5 Security Tips for Las Vegas Jewelry Market Week 2026

This year, it’s what could happen outside of show hours that worries JSA Executive Vice President Scott Guginsky.

Smart Age Solutions CEO and National Jeweler columnist Emmanuel Raheb
ColumnistsMay 27, 2026
What Jewelers Can Learn From Luxury Fashion’s Digital Playbook

High-end fashion houses know how to emotionally connect with customers online. Retail jewelers should take note, Emmanuel Raheb writes.

Couture The Iridescence designers Aziza-Abdullah Nicole, Cindy Liebe, Danyell Roscoe, Jessica Liu, Marie Helena from Rebel Jewelry, Julia de Souza, and Xiao Wang
Events & AwardsMay 27, 2026
Couture’s ‘The Iridescence’ Will Showcase 7 Emerging Jewelry Designers

The designers are the third cohort of mentees from the show’s Belonging @ Couture mentorship program.

National Jeweler columnist Sherry Smith, partner at The Retail Smiths
ColumnistsMay 26, 2026
The Key Mindset for Better Trade Show Buying

Buying discipline at trade shows starts with clarity about your inventory levels, Smith writes.

JCK Talks panel on stage
Events & AwardsMay 26, 2026
12 JCK Talks Sessions to Add to Your Las Vegas Schedule

The trade show’s education series returns, with sessions on retail trends, AI, watches, marketing, corporate responsibility, and more.

CBG Curated Designer Project Logo
Events & AwardsMay 26, 2026
CBG Brings Its Curated Designer Project to Las Vegas Show

The Curated Designer Project has expanded to highlight eight independent jewelry designers during CBG’s Las Vegas show.

Walters Faith
TrendsMay 26, 2026
Amanda’s Style File: A Cooldown Is Coming

Bring a cool tone to your summer jewelry with these white metal pieces.

×

This site uses cookies to give you the best online experience. By continuing to use & browse this site, we assume you agree to our Privacy Policy