Editors

A State-By-State Breakdown on Diamond Shapes and Sizes

EditorsFeb 26, 2016

A State-By-State Breakdown on Diamond Shapes and Sizes

Which states are home to the country’s biggest diamonds? What are the most popular diamond shapes where your store is located? Editor-in-Chief Michelle Graff examines it all via White Pine’s new report.

20160226_White-Pine-study.jpg
Not many surprises here--round and princess-cut diamonds are the top most popular diamond shapes in the United States while the heart, the Asscher and the baguette lag, data recently released by White Pine shows.

Which state is home to consumers with the biggest and best diamonds (and no, the answer is not Texas)? What’s the popular most diamond shape in Alabama? California? Alaska?

These are some of the questions White Pine aimed to answer with a recently released report on diamond jewelry ownership in the United States. 

Many jewelers already are familiar with White Pine, which has a business-to-business arm called White Pine Trading that buys and sells pre-owned jewelry and diamonds within the trade.

But, through WP Diamonds and WPDiamonds.com, the company also deals directly with thousands of consumers, which gives it access to a wealth of data about what type of jewelry and diamonds people actually own.

Matthew Howe, the company’s vice president of marketing, said White Pine has opted to begin sharing some of that data with the industry, and so it has published this first report, America’s Diamond and Jewelry Ranking. 

The report is based on 15,000 consumer inquiries and interactions but, Howe pointed out, it is not a ranking of what’s selling at retail right now. It’s an ownership study, looking at what people already have and where they live.

There’s much to examine in the report and I had a hard time deciding where to begin but, in the interest of getting out of the office before 7 p.m. for once, I decided to go with diamond shape.

What the report shows about the most popular diamond shapes in the U.S. is not unexpected in the least, with round and princess-cut diamonds comprising the majority of the market.

What Howe said he did find surprising was that cushion-, emerald- and marquise-cut diamonds were all in the same ballpark in terms of ownership. A total of 4.8 percent of consumers included in the study owned a marquise, while 4.47 percent owned an emerald-cut diamond and 4.12 percent had a cushion; they were the three most commonly owned cuts after rounds and princesses.

The White Report also noted that since the launch of WPDiamonds.com in 2012, oval-shaped diamonds, which, as I understand it, are gaining ground in the market along with marquises and pears, have increased in popularity. They’ve gone from being the eighth most popular diamond cut in the country to the sixth in that three-year span. (And both ovals and pears are apparently very popular in Texas.)

From shape, we can move on to

size, meaning, what states have the biggest and best diamonds (two distinctly different categories in the White Pine study).

For me, there were absolutely no surprises when it came to the top five states for diamond quality: New York, Florida (home to many now-retired former New Yorkers), California, Connecticut (home to many people who have high-paying jobs in New York City) and Maryland.

Howe pointed out that Arizona and North Carolina, which, like Florida, are big retirement states for people with the means to do so, also ranked fairly high on the diamond quality scale, coming in at Nos. 15 and 17, respectively. 

In addition to having some of the country’s highest-quality diamonds, Maryland and New York made it into the top five for average diamond size, which was analyzed by looking at loose stones, rings and diamonds set into jewelry but using only the largest diamond per piece for the data.

Maryland actually came in first with an average carat size of 1.75, followed by Michigan (1.69), Illinois (1.59), Alaska (1.49) and New York (1.47 carats).

The state with the smallest average diamonds was Vermont, at 1.03 carats.

Want to see more about what consumers own in the state where your store, or stores, is located? A complete rundown of the results is available to view at no charge on WPDiamonds.com.
Michelle Graffis the editor-in-chief at National Jeweler, directing the publication’s coverage both online and in print.

The Latest

Marie Lichtenberg Lasso Locket Bracelets Campaign
CollectionsJan 14, 2026
Marie Lichtenberg Lassos Leather for New Bracelets

The brand is trading its colorful fabric cords for Italian leather in its “Lasso” baby locket bracelets.

“My Next Question: The Podcast” graphic featuring Amanda Gizzi and Michelle Graff
TechnologyJan 14, 2026
“My Next Question” Enters Its Podcast Era

National Jeweler and Jewelers of America’s popular webinar series is evolving in 2026.

Saks New York City holiday lights
MajorsJan 14, 2026
Saks Files for Bankruptcy, Names New CEO

The department store chain owes millions to creditors like David Yurman, Roberto Coin, Kering, and LVMH.

JamAlert 1872x1052.png
Brought to you by
How Jewelers Can Fight Back Against Cell Jammers

Criminals are using cell jammers to disable alarms, but new technology like JamAlert™ can stop them.

Colman Domingo
CollectionsJan 14, 2026
Boucheron Names Colman Domingo as Brand Ambassador

The award-winning actor’s visionary approach and creativity echo the spirit of Boucheron, the brand said.

Weekly QuizJan 08, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Burnell’s Fine Jewelry Kristi Regan, Nathan Regan, Sean Hamlin, Erin Carson
IndependentsJan 14, 2026
Kansas Jeweler Wins 2025 ‘Wag’ Award

Edge Retail Academy honored Burnell’s Fine Jewelry in Wichita, Kansas, with its annual award for business excellence.

National Jeweler columnist Sherry Smith, vice president of coaching strategy and development at the Edge Retail Academy
ColumnistsJan 13, 2026
2025 Was a ‘Price Up, Units Down’ Year, Here’s What That Signals for 2026

In a market defined by more selective consumers, Sherry Smith shares why execution will be independent jewelers’ key to growth this year.

Recipients Collage 2025 - NJ (1872 x 1050 px) (1872 x 1052 px).png
Brought to you by
Impacting Tomorrow Today

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

Orr’s Jewelers David Gordon, Marcia Gordon, Aliza Gordon, Leslie Gordon
IndependentsJan 13, 2026
Orr’s Jewelers Opens New Location in Pittsburgh’s Strip District

The family-owned jeweler’s new space is in a former wholesale produce market.

Stock image of a gavel and books
CrimeJan 13, 2026
Alleged Getaway Driver Charged in Florida Jewelry Store Robbery

Ivel Sanchez Rivera, 52, has been arrested and charged in connection with the armed robbery of Tio Jewelers in Cape Coral, Florida.

Rio Grande diamonds
SourcingJan 13, 2026
Rio Grande To Offer Calibrated Diamond Melee

The supplier’s online program allows customers to search and buy calibrated natural and lab-grown diamond melee, including in fancy shapes.

Hana Kaneko rings
Events & AwardsJan 13, 2026
NYC Jewelry, Antique, & Object Show Announces Winter Event

The new show will take place Jan. 23-25, 2026.

MNQ FINAL - NJ web - 1872 x 1052 px.png
PodcastsJan 12, 2026
Introducing My Next Question, the Podcast

A monthly podcast series for jewelry professionals

Peter Yanzter, former executive director of AGS Labs
GradingJan 12, 2026
Peter Yantzer, Former Executive Director of AGS Labs, Dies at 77

Yantzer is remembered for the profound influence he had on diamond cut grading as well as his contagious smile and quick wit.

Macy’s New York Herald Square
MajorsJan 12, 2026
These 14 Macy’s Locations Will Close This Year

The store closures are part of the retailer’s “Bold New Chapter” turnaround plan.

Jewelers Mutual logo
MajorsJan 12, 2026
Jewelers Mutual Acquires AI-Powered Event Insurance Program

Through EventGuard, the company will offer event liability and cancellation insurance, including wedding coverage.

Kendra Scott CEO Chris Blakeslee
MajorsJan 09, 2026
Kendra Scott Taps Activewear Exec as CEO

Chris Blakeslee has experience at Athleta and Alo Yoga. Kendra Scott will remain on board as executive chair and chief visionary officer.

Wrapped holiday present boxes
SurveysJan 09, 2026
U.S. Holiday Retail Sales Up 4%, Visa, Mastercard Say

The credit card companies’ surveys examined where consumers shopped, what they bought, and what they valued this holiday season.

Christie’s Kimberly Miller
AuctionsJan 09, 2026
Christie’s Names New Global Managing Director for Luxury

Kimberly Miller has been promoted to the role.

Lionheart Serenity Opal Amulet Charm
CollectionsJan 09, 2026
Piece of the Week: Lionheart’s ‘Serenity’ Opal Charm

The “Serenity” charm set with 13 opals is a modern amulet offering protection, guidance, and intention, the brand said.

Hannah Dodd and Claudia Jessie in Pandora Bridgerton campaign
CollectionsJan 08, 2026
Pandora’s New ‘Bridgerton’ Jewels Celebrate Bees, Bows, and Blooms

“Bridgerton” actresses Hannah Dodd and Claudia Jessie star in the brand’s “Rules to Love By” campaign.

Ana Khouri logo
Events & AwardsJan 08, 2026
Ana Khouri To Receive 2026 Gem Award for High Jewelry Excellence

Founded by jeweler and sculptor Ana Khouri, the brand is “expanding the boundaries of what high jewelry can be.”

Stuller’s Color of the Year for 2026, “Signature Red”
TrendsJan 08, 2026
Stuller’s Color of the Year Is a Stark Contrast to Pantone’s White

The jewelry manufacturer and supplier is going with a fiery shade it says symbolizes power and transformation.

Gracie Abrams Chanel Coco Crush
CollectionsJan 08, 2026
Gracie Abrams To Front New Chanel Jewelry Campaign

The singer-songwriter will make her debut as the French luxury brand’s new ambassador in a campaign for its “Coco Crush” jewelry line.

Bobbi L. Avery, Jeffery Bolling, Britney Phillips, and Lindsay Salvo
MajorsJan 08, 2026
Diamond Council of America Names New Board Directors

The nonprofit’s new president and CEO, Annie Doresca, also began her role this month.

Headshot of National Jewler columnist Peter Smith
ColumnistsJan 07, 2026
Peter Smith: Physical Retail—The Beginning or the End?

As the shopping mall model evolves and online retail grows, Smith shares his predictions for the future of physical stores.

Pinar Hakim Rainbow Seahorse Pendant, Nue Fine Jewelry Irene Charm, Susannah King Venus Ring
Events & AwardsJan 07, 2026
Melee Adds 13 New Designers to NYC Show

The trade show is slated for Jan. 31-Feb. 2 at The Lighthouse in New York City's Chelsea neighborhood.

×

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