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

Movado Connect 2.0 watches
FinancialsNov 26, 2025
Movado CEO Talks Tariffs, Growing Interest in Accessible Luxury Watches

During its Q3 call, CEO Efraim Grinberg discussed the deal to lower tariffs on Swiss-made watches, watch market trends, and more.

Rosior Pumpkin Ring
TrendsNov 26, 2025
Piece of the Week: Rosior’s Pumpkin Ring

Rosior’s high jewelry cocktail ring with orange sapphires and green diamonds is the perfect Thanksgiving accessory.

Alejandro Cuellar
MajorsNov 26, 2025
Serafino Consoli Names New VP of Sales, Brand Development for the Americas

Luxury veteran Alejandro Cuellar has stepped into the role at the Italian fine jewelry brand.

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.

Grandview Klein scholarships
Events & AwardsNov 26, 2025
Grandview Klein Presents 4 Scholarships in Namibia

The company gave awards to four students at the Namibia University of Science & Technology, including one who is a Grandview Klein employee.

Weekly QuizNov 20, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Finestar manufacturing
SourcingNov 25, 2025
Finestar Opens Diamond Manufacturing Facility in Johannesburg

It joins the company’s other manufacturing facilities globally, including in India, Botswana, and Namibia.

State Property Toadstool Pendant
TrendsNov 25, 2025
Amanda’s Style File: Polka Dots

The polka dot pattern transcends time and has re-emerged as a trend in jewelry through round-shaped gemstones.

roseco-catalog.png
Brought to you by
Roseco Releases New Full-Line Catalog

Roseco’s 704-page catalog showcases new lab-grown diamonds, findings, tools & more—available in print or interactive digital editions.

Stock image of gavel and books
CrimeNov 25, 2025
Former Arizona AG Official Charged With Trafficking Stolen Jewelry

Vanessa Hickman, 49, allegedly sold a diamond bracelet that was mistakenly sent to her home.

GIA executives John Koivula, Kathryn Kimmel, Susan Jacques, Tom Moses, Alice Keller, James E. Shigley
Events & AwardsNov 25, 2025
GIA Awards Susan Jacques With Its Highest Honor

GIA’s former president and CEO was presented with the Richard T. Liddicoat Award for Distinguished Achievement.

20251124_MNQ social media etiquette header.jpg
Recorded WebinarsNov 24, 2025
Watch: Top Tips for Social Media Etiquette

Social media experts spoke about protecting brand reputation through behaving mindfully online.

Breitling house of brands
WatchesNov 24, 2025
Breitling Reveals Plans for Gallet, Universal Genève

In 2026, the three will come together as “House of Brands,” with Gallet sold in Breitling stores and Universal Genève sold separately.

Cynthia Erivo in Muse’s Have a Heart x Cynthia Erivo Collection
CollectionsNov 24, 2025
Muse Debuts a Wicked 'Have a Heart x Cynthia Erivo' Sequel

The second drop, which includes more Elphaba-inspired pieces from additional designers, will continue to benefit nonprofit Dreams of Hope.

J.R. Dunn Jewelers employees
IndependentsNov 24, 2025
J.R. Dunn Jewelers Names New President

Second-generation jeweler Sean Dunn has taken on the role.

Amber Pepper
MajorsNov 21, 2025
Natural Diamond Council Names New CEO

Amber Pepper’s main focus will be on digital innovation and engaging younger consumers.

Origin De Beers Group logo
SourcingNov 21, 2025
De Beers’ Branded, Traceable Diamonds Roll Out to 19 Retailers

Called “Origin by De Beers Group,” the loose, polished diamonds are being sold in a total of 30 stores in the United States and Canada.

Melissa Kaye Rocky Infinity Emerald Necklace
CollectionsNov 21, 2025
Piece of the Week: Melissa Kaye’s ‘Rocky Infinity’ Necklace

The lariat necklace features a 4.88-carat oval-cut Zambian emerald in 18-karat yellow gold.

Phillips auction of The Vanderbilt Sapphire brooch
AuctionsNov 20, 2025
Vanderbilt Jewels Shine at Phillips Sale, Pink Diamond Withdrawn

A 43-carat sapphire brooch from the Vanderbilt collection was the top lot of the Geneva sale.

Rebecca Rau Jewels Green Flame Necklace
CollectionsNov 20, 2025
Rebecca Rau Jewels Debuts With ‘Then & Now’ Collection

Rau is a fourth-generation art and antique dealer from M.S. Rau gallery whose first jewelry collection merges artifacts with modern design.

Purvi Shah
Policies & IssuesNov 20, 2025
RJC Names New Executive Director

Former De Beers sustainability leader Purvi Shah will take over the role in February 2026.

La Joux-Perret manufacturing facility in La Chaux-de-Fonds, Switzerland
WatchesNov 20, 2025
LVMH Takes Minority Stake in Citizen Group-Owned Movement Maker

La Joux-Perret is based in La Chaux-de-Fonds, Switzerland, and makes solar quartz as well as mechanical watch movements.

Julia Griffith
GradingNov 20, 2025
Julia Griffith Joins SSEF as Head of Education

She previously taught at Gem-A and is the founder of The Gem Academy.

Helena Bonham Carter in Larkspur & Hawk Once Upon a Time Campaign
CollectionsNov 19, 2025
Larkspur & Hawk Celebrates 25 Years With Helena Bonham Carter Campaign

The British actress and her daughter modeled pieces from the brand’s new “Palette” capsule for its “Once Upon a Time” holiday campaign.

Google reviews on a phone screen and a laptop
TechnologyNov 19, 2025
Google Has a New Form for Reporting ‘Review Bombing’ Attacks

Plus, the tech giant shares the steps retailers should take if they believe they’re a victim of a review extortion scam.

Shaftel Diamonds logo and jeweler’s bench
IndependentsNov 19, 2025
Houston Jeweler Keith Shaftel Retires, Next Generation Steps In

Danny and Gaby Shaftel are now Shaftel Diamonds’ CEO and chief operating officer, respectively.

Midas chain mini studs
TrendsNov 19, 2025
Midas Chain Releases 2025 Holiday Style Guide

The jewelry manufacturer’s seasonal offering features its new “Melodie” bangles, as well as mini stud earrings and layering pieces.

Jewelry from NYC Jewelry Week 2024
Events & AwardsNov 18, 2025
NYC Jewelry Week 2025: 12 Must-See Events

With more than 140 activations taking place in New York City now through Nov. 23, these 12 events are can’t-miss moments.

×

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