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

Collage of new Stuller items
MajorsJun 08, 2026
Stuller Expands Selection of Lab-Grown Diamonds, Demi-Fine Jewelry

The jewelry manufacturer has added Taylor Swift-esque diamond shapes, and more silver, gold vermeil, and gold-plated jewelry.

De Beers Group’s Sally Morrison
SourcingJun 08, 2026
Sally Morrison to Depart De Beers This Summer

Morrison has been marketing diamonds on and off since the early 2000s and said she is leaving to “pursue new projects.”

Lauren K Gemma pendant
TrendsJun 08, 2026
Amanda’s Style File: June’s Birthstone Trio

Those born in June can celebrate with pearl, alexandrite, and moonstone jewelry.

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.

Overnight Mountings Ring Builder Platform
TechnologyJun 08, 2026
Overnight Mountings Launches Ring Builder Platform

The platform allows retailers to guide clients through a customizable engagement ring buying experience in a branded interface.

Weekly QuizJun 05, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Dunkelberger’s Fine Jewelry
IndependentsJun 05, 2026
Pennsylvania Jewelry Store To Close After 79 Years

Jim Springer, owner of Dunkelberger’s Fine Jewelry, is heading into retirement.

Stock image of a person shopping at the grocery store
SurveysJun 05, 2026
Consumers to Cut Back on Spending Amid Rising Prices, Survey Shows

When conducting its May consumer confidence survey, The Conference Board asked extra questions about consumers’ budgeting strategies.

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.

Rebel Jewelry Tunnel Charm
CollectionsJun 05, 2026
Rebel Jewelry’s Charm Symbolizes Perseverance for Pride Month

The “Tunnel” charm, our Piece of the Week, celebrates Pride Month with its design inspired by hope and the light at the end of the tunnel.

Three gold rings set with yellow- and brown-hued diamonds
SourcingJun 05, 2026
State of Diamonds: The Way Forward for Natural Diamonds

The jewelry industry is reassessing its positioning as Gen Z reshapes the retail landscape and lab grown continues to gain market share.

A Marvelous Journey: The Collection of Maurice Tempelsman
AuctionsJun 04, 2026
Treasures from Maurice Tempelsman’s ‘Marvelous’ Life Head to Auction

Up for auction at Sotheby’s, the collection of Tempelsman’s personal effects includes a Cartier Tank watch Jackie O. gifted him.

Dakota Badia and Nancy Badia
CollectionsJun 04, 2026
Buddha Mama to Spend the Summer in Aspen

The Miami-based fine jewelry brand will host its first summer residency in the Colorado mountain town from June 5 to Aug. 23.

AGS at Peter Yantzer Building dedication
MajorsJun 04, 2026
AGS Honors Late Peter Yantzer, Holds Time Capsule Ceremony

The organization also announced its international board of directors for the 2026-2027 term.

Neiman Marcus downtown Dallas store
MajorsJun 04, 2026
Neiman Marcus’ Downtown Dallas Store to Close in September

Saks Global confirmed the closure this week, spelling the end for a store that’s been part of downtown Dallas for more than 100 years.

The Retail Smiths founder and National Jeweler columnist Peter Smith
ColumnistsJun 03, 2026
Peter Smith: When Top Talent Leaves and What It Says About You

Smith discusses how managers should handle a top performer's exit, warning that a poor response could have a lasting impact.

Screenshot of the Tracr website homepage
GradingJun 03, 2026
GIA’s Tracr Investment Is First Step Toward Industry-Owned Platform

The Gemological Institute of America is now a 30 percent stakeholder in Tracr, the De Beers-backed blockchain for diamonds.

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.

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.

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.

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.

×

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