Trends

Kaley Cuoco Has a Three-Stone Engagement Ring With a Twist

TrendsAug 22, 2024

Kaley Cuoco Has a Three-Stone Engagement Ring With a Twist

The three-stone ring was designed by Shahla Karimi Jewelry and represents Cuoco, her fiancé Tom Pelphrey, and their child.

Kaley Cuoco, Tom Pelphrey, Matilda Pelphrey, and the engagement ring
“Ozark” actor Tom Pelphrey proposed to “The Big Bang Theory” star Kaley Cuoco with an 18-karat yellow gold ring featuring a cushion-cut white diamond flanked by two yellow diamonds. (Photo courtesy of the designer’s Instagram @shahlakarimi_jewelry)
Los Angeles—Set off the wedding bells!

Kaley Cuoco, star of HBO Max’s “The Flight Attendant” and CBS sitcom “The Big Bang Theory,” received a unique three-stone engagement ring from her boyfriend,  Tom Pelphrey, an actor in “Ozark,” last week.

Cuoco announced the couple’s engagement in an Instagram story, thanking designer Shahla Karimi of Shahla Karimi Jewelry for “creating this once in a lifetime slice of perfection.”

The ring centers a cushion-cut white diamond flanked by two yellow diamonds. National Jeweler estimates the total weight of the ring to be about 4 carats.

Each stone represents a member of the couple’s family—one for Cuoco, one for Pelphrey, and one for their 1-year-old daughter Matilda, or “Tildy”—Cuoco explained in a comment on the New York City-based jewelry designer’s Instagram.


The stones, set in 18-karat yellow gold, are not arranged in a typical three-stone setting.

On one side, a baguette-cut diamond is set north-south, while on the other side, an emerald-cut diamond is east-west.

The meaning behind the unique orientation is unknown.

Karimi, who worked with Pelphrey to design the ring, said she was not authorized to publicly share any details on the ring beyond what was posted on social media.

 Related stories will be right here … 

Karimi also designed the ruby rings worn by Taylor Swift to the 2024 Super Bowl. Hailey Bieber, Reese Witherspoon, Gabrielle Union, and Kasey Musgraves are among the other celebrities who own pieces from her brand.

Cuoco and Pelphrey met in 2022 because they have the same management team, explained Cuoco in an interview with Extra.

Their manager took Cuoco as her guest to the “Ozark” premiere, where she met Pelphrey, experiencing what she described as love at first sight.

Three-stone rings have been rising in popularity since 2017, when Prince Harry proposed to Meghan Markle with a cushion-cut white diamond ring flanked by two round brilliant diamonds.

The engagement ring style grew in popularity, with noteworthy celebrities like Jennifer Lopez and Heidi Klum having opted for a three-stone ring.

It remains popular in 2024, with experts in the jewelry industry noting it as one of the engagement ring trends for the year.

The Latest

Sean Gilbertson
SourcingJul 06, 2026
Gemfields CEO Sean Gilbertson Steps Down

After eight years, Gilbertson is leaving his post at the mining company, which is currently facing a slew of operational challenges.

Bachendorf’s New Dallas Location Exterior Rendering
IndependentsJul 06, 2026
Bachendorf’s To Open Fifth Store In Dallas

The new location is set to open this winter, featuring the retailer’s first rotating jewelry designer residency.

Jung Kook for Graff
MajorsJul 06, 2026
Graff Names BTS Star Jung Kook as New Ambassador

The pop artist appears in the latest campaign for the “Laurence Graff Signature” collection.

Brought-To-By-Article-Top-Image.jpg
Brought to you by
Wedding Band Trends 2026: Personalization Takes Center Stage

Colored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.

Pandora pearl jewelry campaign imagery
CollectionsJul 06, 2026
Pandora’s New Baroque Pearl Collection Is a Whimsical ‘Wonder’

One-of-a-kind pearls take the shape of ice cream cones, frogs, submarines, and other imaginative charms.

Weekly QuizJul 01, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
London Diamond Bourse President Charlotte Rose
SourcingJul 02, 2026
London Diamond Bourse Elects First Female President

Charlotte Rose said her election is “a sign that this is an industry capable of change.”

Bracelets_1872_1052.jpg
Supplier BulletinJul 02, 2026
Elevating Retail Showcases with Today's Necklace & Bracelet Trends

Sponsored by Rio Grande Jewelry Supply

DCA-NJ-article-1872x1052-060826.jpg
Brought to you by
Building the Future of Jewelry Retail: DCA Expands Education, Leadership Development, and Workforce Solutions

DCA is preparing the next generation of professionals by supporting workforce development, leadership growth, and career advancement.

D. Geller & Son store mural
IndependentsJul 02, 2026
D. Geller & Son Partners with KSU Art Students on Store Mural

The artwork celebrates the Atlanta jeweler’s legacy and symbolizes its commitment to supporting local artists and its community.

Hand taking jewelry out of jewelry box
Events & AwardsJul 02, 2026
Stratus Estate Buyers Offers Jewelers Turnkey Buying Events

Its team can evaluate jewelry and watches, as well as luxury handbags, artwork, and collectibles.

Hand holding a gas pump
SurveysJul 01, 2026
Consumer Confidence Ticks Up in June

Falling oil prices were a factor in the slight month-over-month improvement.

Rio Grande Millgrain Wedding band and Round Diamond Engagement Ring
CollectionsJul 01, 2026
Rio Grande Launches First Finished Bridal Collection

The new offering comprises more than 120 bridal and engagement ring styles with natural and lab-grown diamonds.

Rockefeller Center Rink Rolex Clock
WatchesJul 01, 2026
Rolex Unveils Clock at Rockefeller Center

The clock is part of the celebration for the soon-to-open Rolex headquarters on New York City’s Fifth Avenue.

Kristen Cannon
IndependentsJul 01, 2026
Kristen Cannon of Valobra Master Jewelers Dies at 49

The public relations professional is remembered for her benevolent generosity and unwavering commitment to those around her.

G Shock Pokemon watch in Pokeball
WatchesJun 30, 2026
Pokémon Fans Will Want to Catch This New G-Shock Watch

The new watch commemorates Pokémon’s 30th anniversary.

Saks Fifth Avenue door sign
MajorsJun 30, 2026
Saks Global Emerges From Bankruptcy With New Name

The luxury retailer is now called Exemplar Luxury Group.

Jade Ruzzo Lady Collection Compact Mirror Necklace
CollectionsJun 30, 2026
Jade Ruzzo’s New Collection Embodies the Art of Being a Lady

The “Lady” collection is a new take on old beauty standards with gemstone-adorned hair pins and combs, a compact mirror necklace, and more.

Blue Nile Montana sapphire jewelry
SourcingJun 30, 2026
Blue Nile Introduces Montana Sapphire Collection

The new line is included in the e-tailer’s curation of jewelry celebrating America’s 250th anniversary.

American Gem Society
GradingJun 30, 2026
AGS Opens 2026 Recertification Exam

All active members who earned their credential or designation before Dec. 1, 2025, are required to recertify.

Briony Raymond Carousel Collection Campaign Imagery
CollectionsJun 29, 2026
Briony Raymond’s New Collection Is a ‘Carousel’ of Hard Stones

The new jewelry collection uses a colorful palette of onyx, malachite, tiger’s eye, mother-of-pearl, lapis, turquoise, and coral.

Lee Michaels Fine Jewelry Ridgeland Mississippi exterior
IndependentsJun 29, 2026
Look Inside Lee Michaels’ Revamped Mississippi Flagship

Lee Michaels Fine Jewelry is celebrating 30 years in the Ridgeland, Mississippi community.

Sean Milliner
GradingJun 29, 2026
National Rarities Announces New Gemology Manager

Sean Milliner has joined the company.

GIA London Canary Wharf campus
GradingJun 29, 2026
GIA to Open New London Campus

Classes will begin in August at GIA’s new Canary Wharf location.

Hogback diamond ring
AuctionsJun 26, 2026
‘Hogback’ Diamond Ring Finds a New Home

A ring set with “hogback” diamonds, an early stone cut dating to around the 16th century, sold for more than $20,000 at a U.K. auction.

Kris Averi Rainbow Prism Thorn Ring
CollectionsJun 26, 2026
Strength Is Sharpened Into Beauty in Kris Averi’s ‘Prism Thorn’ Ring

The rainbow version of the ring, our Piece of the Week, features angel-cut, octahedral lab-grown sapphires designed to be worn as armor.

A tray of Rembrandt charms
MajorsJun 26, 2026
Rembrandt Charms Debuts ‘Charms That Give Back’

The new initiative donates a portion of the proceeds from select charms to charitable causes.

Brandee Dallow
SourcingJun 25, 2026
ICA Names Brandee Dallow as CEO

Dallow will lead the International Colored Gemstone Association, effective July 6.

×

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