Independents

After a Lifetime in Jewelry, Cos Altobelli Retires

IndependentsFeb 10, 2021

After a Lifetime in Jewelry, Cos Altobelli Retires

Spurred by COVID-19, the jewelry-maker, expert appraiser and author closed his Burbank, California store last year.

20210210_Cos_at_AGS_library.jpg
In 2011, the American Gem Society named its library in honor of Cos Altobelli for the years of service he dedicated to the organization. It is located at AGS headquarters in Las Vegas.
Los Angeles—Cos Altobelli, the legendary jeweler and appraiser, had a retirement plan. 

He would keep working for a couple more years then, at the spry young age of 93, call it quits and ease into a life of golf and travel. 

But, like so many others, the pandemic derailed his long-laid plans. 

He opted to close his Burbank, California jewelry store in July 2020 and head into an early—by his standards only—retirement out of concern for his health and safety. 

“It’s a peculiar virus,” he remarked in a phone interview with National Jeweler last month. “You just don’t know.”

His retirement comes after a career of jewelry design, making, repairing, appraising and consulting that spanned decades, and generations. 

Altobelli grew up in Chicago, the son of a master jewelry craftsman, Luigi Altobelli, who had learned the trade from his father, Cosimo Altobelli, in Italy. 

He was repairing clocks by age 9, watches by 13 and making gold and platinum jewelry by the time he was 17. 

Despite the family tradition, and the early practice, jewelry was not Altobelli’s first choice of career. 

He wanted to be a baseball player and, in fact, used to lie to his parents about his participation in America’s pastime.

Altobelli said he used to tell his parents he needed to stay after school to do homework when he was actually playing baseball in a Chicago city league. 

He was so good at the sport, in fact, that Altobelli said he was offered a contract with the Cincinnati Reds Double-A team but ultimately had to decline. 

His father had purchased land in Los Angeles and, he informed the family, they were moving west to open a jewelry store. 

Altobelli Jewelers opened its doors in North Hollywood in 1948.

It was in California that Altobelli began to carve out his own path in jewelry, learning more about gemstones and, later, jewelry appraisals. 

“It was very difficult living with my father because he was a genius,” he said. “I had a long way to go before I could be near his level of talent.”

He earned his graduate gemologist diploma from the Gemological Institute of America in 1949. 

He took over the family business in 1963 and, in 1969, attended his first AGS Conclave. 

It was there, he said, that he became interested in appraising, a skill that would become a lifelong passion and lead to endeavors well beyond those of your typical jewelry store owner.
Over time, Altobelli created the AGS’s Certified Gemologist Appraiser (CGA) program, which includes a practical exam, where people examine pieces of jewelry, as well as a theory exam. He became a CGA himself in 1983. 

According to AGS, it was the first formal appraisal education program in the United States. 

“There was nothing like it before,” pointed out longtime friend and fellow AGS jeweler and CGA Cathy Calhoun. “Everything he has done for AGS and its members, and me as a young gemologist, he did all this for free. He never charged. 

“I wouldn’t have even got any further in appraising if it weren’t for Cos mentoring me. I could pick up the phone at any time, with any jewelry or appraising question, and he’s on it. Day or night, you get your response.”


Altobelli pinning Bill Boyajian at AGS Conclave in 2013 when Boyajian won the Shipley Award. Altobelli said he attended 50 consecutive Conclaves, from 1969 until the last one in 2019. (There was no Conclave in 2020 due to the pandemic.)
Altobelli pinning Bill Boyajian at AGS Conclave in 2013 when Boyajian won the Shipley Award. Altobelli said he attended 50 consecutive Conclaves, from 1969 until the last one in 2019. (There was no Conclave in 2020 due to the pandemic.)

Altobelli’s appraising talents have also landed him on the speed dials—or, in this day and age, the Favorites lists—of numerous attorneys as well as the IRS.

He’s done expert witness work for the IRS, appraising donations to determine if the value has been overinflated.

Law firms have retained him to testify in court cases involving diamonds, colored gemstones and jewelry more than 100 times, he said.

The most high-profile among them: the case of Drew Brees and the colored diamonds for which the New Orleans Saints quarterback claimed he overpaid.

Brees’ attorney retained Altobelli in the case and they won, securing a $6 million judgement for the future Hall of Famer.

He also wrote the book on jewelry appraising, literally.

First published in 1981, the fourth edition of “The Practical Guide to Jewelry Appraising” just came out and is available on Amazon and through AGS.

Altobelli’s appraisal work, including his contributions to AGS, are so numerous that it’s easy to forget he also ran a jewelry store in Hollywood for decades—he counted the late Bob Hope and Clint Eastwood among his clientele—and did property work for more than 100 movies and TV shows.

For the iconic 1993 hit film “Sleepless in Seattle,” he made the little diamond necklace Meg Ryan’s character, Annie, wears throughout the movie.

For “Hook,” Steven Spielberg’s 1991 movie starring the late Robin Williams, Dustin Hoffman and Julia Roberts, Altobelli created the earrings for the pirates, the buttons for their uniforms, the engraved gauntlet Captain Hook (Hoffman) wore and more.  And he ran all over Southern California securing the pocket watches and clocks that haunted Hook.

Altobelli moved his jewelry store from North Hollywood to Burbank in 2008, and was still going into the office regularly as of last year, at the age of 90, until the pandemic hit.

“We would have let him work at least another year had COVID not occurred,” his wife, Kelly Altobelli, said. (When asked if he would still be working if Kelly hadn’t made him retire, Cos’s answer was a definitive, “yes.”)

The same can be said of his career as a skier, a hobby he gave up when he hit 90.

“I wanted to ski last year but she wouldn’t let me,” he laughed.

Altobelli with, clockwise from bottom, wife Kelly Altobelli, jeweler Georgie Gleim and jeweler Cathy Calhoun at the Laguna Seca Raceway. In addition to making jewelry, appraising jewelry and skiing, Altobelli also raced a Ferrari for seven years. He won at Laguna Seca in 1981, and retired then and there from racing.
Altobelli with, clockwise from bottom, wife Kelly Altobelli, jeweler Georgie Gleim and jeweler Cathy Calhoun at the Laguna Seca Raceway. In addition to making jewelry, appraising jewelry and skiing, Altobelli also raced a Ferrari for seven years. He won at Laguna Seca in 1981, and retired then and there from racing.

In January, Cos and Kelly relocated permanently, from L.A. to Las Vegas, where Cos said he’ll be working on his golf game and, with Kelly’s help, marketing his book.

As far as being a jeweler and appraiser, though, Cos said he is officially retired. 

He and Kelly have plans to buy a bigger SUV and embark on road trips to places like the Crater of Diamonds State Park in Arkansas and, of course, stop at some AGS stores along the way, where he’ll no doubt be a welcome, and familiar, face. 

In addition to being instrumental in creating the AGS’s CGA program in 1983, Cos has chaired the Appraisals Standards subcommittee since 1983 and continued to teach the program at Conclave through 2019. 

He also has been a frequent speaker at Guild meetings and a contributor to the recertification exam, as well as numerous other AGS publications. 

Cos received the organization’s highest honor, the Robert M. Shipley Award, in 1987, and the organization’s library at its Las Vegas headquarters bears his name. 

AGS and AGS Labs CEO Katherine Bodoh said the organization cannot thank the now-retired jeweler enough for his many contributions over the years. 

“Members of the AGS community use words like ‘legend’ and ‘icon’ to describe Cos,” she said. “The praise is well-deserved.”

Michelle Graffis the editor-in-chief at National Jeweler, directing the publication’s coverage both online and in print.

The Latest

Image from PGI USA Platinum Born campaign
MajorsOct 23, 2026
PGI USA Set to Close at Year’s End

The closure is part of a global restructuring that also includes PGI winding down its operations in Japan, South Korea, and Hong Kong.

Rachel Chalchinsky of Color Source Gems Survivor Tribute Ring
SourcingOct 23, 2026
Rachel Chalchinsky’s ‘Survivor Tribute’ Ring

The ring, our Piece of the Week, was designed by eight-year breast cancer survivor Rachel Chalchinsky of Color Source Gems.

Jewelers of America new logo
TechnologyOct 23, 2026
JA Unveils New Website, Logo

The website offers enhanced member benefit access, industry directories, educational resources, a job board, and access to the MJSA Journal.

DeBeersICONS_TITLE1_CUSTOMCONTENT_1872x1052 (1).jpg
Brought to you by
A Diamond Is Forever Launches 2026 Holiday Campaign Championing Natural Diamonds

A Diamond Is Forever's holiday campaign reimagines natural diamond icons for a new generation celebrating individuality.

Pomellato Paraíba high jewelry choker necklace
FinancialsOct 23, 2026
Kering’s Jewelry Sales Up Double Digits in Q3

Boucheron and Pomellato had a strong third quarter, with Kering looking at jewelry as an increasingly important part of its portfolio.

Weekly QuizOct 22, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Stock image of crime scene tape and police cars
CrimeOct 22, 2026
Jeweler Shot and Killed in His Suburban Cincinnati Store

Tara Sinchuri was the owner of Everest Jewels in Fairfield, Ohio, and a father of three. He was found dead in his store on Tuesday.

Verdura cuffs
MajorsOct 22, 2026
Neiman Marcus Has Gifts for the Jewelry Lover Who Has Everything

Bespoke experiences from Buccellati and Verdura are on the retailer’s 2026 “Fantasy Gifts” list.

lab channel btyb 0926.png
Brought to you by
Open an Account, Get $50 Off Your First Order. No Code Needed.

Built on Relationships. Refined by Craft.

JIS Fall 2026 jewelry
Events & AwardsOct 22, 2026
JIS Fall 2026 Reports Record-Breaking Attendance

The number of participants at the fall show was up 12 percent.

John Hardy Billie Eilish & Finneas Collection Campaign Imagery
CollectionsOct 22, 2026
Billie Eilish, Finneas Co-Design Collection for John Hardy

The Academy and Grammy award-winning siblings have collaborated with John Hardy on a new jewelry line inspired by their personal style.

Graphic for episode 10 of the My Next Question podcast
PodcastsOct 21, 2026
Episode 10: This Episode Is Haunted 

Diana Singer shared the stories of two “cursed” diamonds on this month’s podcast, which was inexplicably riddled with technical issues.

Underground shaft at the Venetia diamond mine
SourcingOct 21, 2026
Venetia Mines Final Carats Ahead of 2-Year Shutdown

The De Beers-owned diamond mine in South Africa is being put on ice as part of a round of previously announced cost-cutting measures.

Off-White Jewelry Collection Imagery
CollectionsOct 21, 2026
Helzberg, Nordstrom Carrying New Jewelry Collection From Off-White

The collection centers designs with clean geometric lines, chunky sculptural pieces, and recognizable details from the luxury fashion brand.

Gemfields rubies
SourcingOct 21, 2026
Gemfields’ Mixed-Quality Ruby Auction Earns $52M

The miner said it saw particularly strong prices for larger, fine-quality rubies at the sale.

Stock image of police cars with lights on
CrimeOct 20, 2026
Security Guard Charged With Murder in Shooting at Texas Mall

The guard opened fire on a man who was smashing a jewelry display case at La Gran Plaza in Fort Worth last week, police said.

Kylie Jenner Fantasy Bra Victoria’s Secret Fashion Show
SourcingOct 20, 2026
The $50M Victoria’s Secret ‘Fantasy Bra’ By The Numbers

Jacob & Co.'s diamond masterpiece is the most expensive Fantasy Bra ever worn on the Victoria’s Secret Fashion Show runway.

Mignon Faget Atelier Collection Campaign Imagery
CollectionsOct 20, 2026
Mignon Faget’s Collection Chooses Handmade Over AI

The “Atelier” collection was inspired by the tools, rituals, and objects in an artist’s studio as a quiet rebuttal to an automated world.

 Rio Grande engagement ring and band
MajorsOct 19, 2026
The Knot to Acquire Rival Wedding Planning Platform Zola

The pending acquisition is an “exciting opportunity” for wedding vendors to grow their business, said The Knot Worldwide’s CEO.

The Secret Gems Thailand
SourcingOct 19, 2026
Jewelry Design Competition Show Airs in Thailand

"The Secret Gems" features eight Thai jewelry brands paired with a team of young craftspeople who create jewelry together to win challenges.

John Hardy Modern Talisman Collection Campaign Imagery
CollectionsOct 19, 2026
John Hardy Enters the Medallion Chat With Talisman Collection

The brand’s “Modern Talisman” capsule collection introduces pendants inspired by the mythology, natural world, and spiritual ethos of Bali.

Collage of independent jewelers celebrating their 100th anniversary in 2026
IndependentsOct 19, 2026
The Stories of 5 Jewelers Celebrating Their Centennials in 2026

Independent jewelers from New Mexico to New Jersey answer the question: What has kept your store in business for 100 years?

Hand holding shopping bags
SurveysOct 16, 2026
How Inflation, Gas Prices Will Affect Holiday Sales

The NRF is expecting holiday sales to increase this year, but consumers and retailers alike are facing Grinch-like headwinds.

Christina Puchi Gemstone Earrings
CollectionsOct 16, 2026
Christina Puchi’s Earrings Hold the Universe

Our Piece of the Week gathers the planets, represented by a variety of colored gemstones, in a pair of 14-karat yellow gold earrings.

Reeds Jewelers Fayetteville
IndependentsOct 16, 2026
Reeds Jewelers Expands, Relocates Flagship

The New York-based jeweler is moving its Amherst flagship store to a larger location in nearby Snyder.

Graff USA Executive Vice President Katy Chen
MajorsOct 16, 2026
Katy Chen Appointed Executive Vice President of Graff USA

Chen, who worked at Cartier and Tiffany & Co., will lead retail sales and operations for the luxury jeweler’s 11 U.S. stores.

Elise & Amy Greenberg
IndependentsOct 15, 2026
Retailer Hall of Fame 2026: Amy and Elise Greenberg

For 40 years, sisters Amy and Elise Greenberg have helmed their 126-year-old family business, leading with appreciation and integrity.

The Retail Smiths Principal Partner Peter Smith
ColumnistsOct 15, 2026
Peter Smith: What Is the Culture REP?

It’s a term Smith coined and felt compelled to share following a bad experience with an aborted flight and an unfeeling flight attendant.

×

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