Majors

Vahan Jewelry Founder Leon ‘Sacha’ Der Calousdian Dies at 85

MajorsNov 13, 2025

Vahan Jewelry Founder Leon ‘Sacha’ Der Calousdian Dies at 85

The third-generation jeweler is remembered as a passionate creative with a love of art, traveling and sailboat racing.

Leon V. Der Calousdian
Leon V. Der Calousdian, the founder of Vahan Jewelry in New York City, died last month at age 85. His son Greg posted this photo to his online obituary with the caption, “On safari in South Africa. In his element, seeking adventure.”
New York—Leon V. Der Calousdian, the founder of Vahan Jewelry, died on Oct. 15 at the age of 85.

The jeweler, affectionately known as “Sacha,” died peacefully surrounded by family, following a battle with Alzheimer’s disease, according to an online obituary.

He was born on June 16, 1940, in Pau, France, to an Armenian family with a history in jewelry design. 

His grandfather, Manasse Der Calousdian, established a luxury jewelry company in Paris in the 1880s, and his father Arsène Der Calousdian took it over in the 1930s, according to a profile on the family in Elite Traveler.

Manasse created diamond crowns for the Shah of Persia in 1906, while Arsène designed bespoke jewelry for European nobility, according to an obituary in InStore. 

Sacha graduated from La Chambre Syndicale de la Bijouterie, a jewelry design school in Paris, and, Instore said, worked with Hermès early in his career. 

In 1958, he moved to New York and later served in the U.S. Army. 

He designed for David Webb among other prominent jewelers, and in 1968, he founded Alwand Vahan Jewelry in a small New York City studio. 

He merged European artistry and American craftsmanship by using mixed metals and developed the signature “Moiré Beaded” texture, which was introduced in the 1990s and remains at the core of the brand’s offerings, particularly its stacking bracelets. 

Sacha was a man of “boundless curiosity and refined taste,” his obituary said, and outside of his work with jewelry, he enjoyed restoring and racing British classic cars. 

He loved to travel the world and drew inspiration globally from architecture, culture, and nature. 

He was also a curator and collector who “saw beauty in every form of human creativity,” according to his obituary.  

In addition to designing jewelry, he enjoyed sculpting and felt at home in the world of art. 

Sacha was also a long-time member of the Larchmont Yacht Club, where he had many friends and enjoyed the thrill of racing an Etchells, a popular one-design sailboat racing class. 

Sacha was a devoted husband, father, and grandfather.  

His warmth, humor, and creativity touched all who knew him, his obituary said. 

His legacy endures through his designs and his wife and sons who lead Vahan today, carrying his vision forward. 

He is survived by his wife of 53 years, Nathalie, his three children, Grégoire (“Greg”), Vanessa, and Cedric, as well as his grandsons Tristan, Sebastien, Leo, Nicolas, and Maxime. 

A funeral Mass was held on Oct. 24 at St. Augustine Church in Larchmont, New York. 


Lauren McLemoreis the associate editor, gemstones at National Jeweler, covering sourcing, pricing and other developments.

The Latest

Stock image of gavel
CrimeDec 24, 2025
LA Jewelry District Couple Pleads Guilty to Hiding Millions from IRS

The couple pleaded guilty to concealing at least $127 million in cash transactions at its precious metals businesses.

People shopping in winter clothes
SurveysDec 24, 2025
Consumer Confidence Falls Again in December

Consumers shared concerns about prices, inflation, tariffs, trade, and politics in the survey’s write-in response section.

Bonhams US headquarters
AuctionsDec 24, 2025
Bonhams to Open New U.S. Flagship in NYC

In February 2026, the auction house will move its headquarters to the former Steinway Hall, a neoclassical landmark on Billionaires’ Row.

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.

Hana Kaneko rings
Events & AwardsDec 24, 2025
NYC Jewelry, Antique, & Object Show Announces Winter Event

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

Weekly QuizDec 23, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Brian Patrick Gilbertson
SourcingDec 23, 2025
Mining Titan Brian Gilbertson Dies at 82

The former BHP Billiton leader and Gemfields chairman is remembered for his influential leadership throughout his 50-year mining career.

Costume Designers Guild Award By Bulgari
Events & AwardsDec 23, 2025
Bulgari Reimagines Costume Designers Guild Award

The LVMH-owned brand has partnered with the costume design union to revamp its award for 2026.

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.

Counterfeit Cartier and Audemars Piguet watches
CrimeDec 22, 2025
Customs Seizes Hundreds of Fake Rolex, Cartier Watches

In the recent multi-shipment seizure, CBP also found counterfeit Audemars Piguet, Moncler, and Chrome Hearts items.

Helzberg new store concept rendering
EditorsDec 22, 2025
How Helzberg Is Reimagining Its Stores

Helzberg’s Chief Retail Officer Mitch Maggart shared details about its tests of a new store concept rooted in an elevated luxury experience.

Graphic for the 2025 Year-End Webinar
Recorded WebinarsDec 22, 2025
2025 Jewelry Rewind: Looking Back on an Eventful Year

Jewelers of America execs and National Jeweler editors discuss tariffs, the sky-high gold price, and the engagement that broke the internet.

Pair of Ippolita Lollatini earrings
MajorsDec 19, 2025
MadaLuxe Group Acquires Ippolita

The luxury goods company said founder Ippolita Rostagno will remain at the brand’s helm.

Bulgari CEO Laura Burdese
MajorsDec 19, 2025
LVMH Names New Bulgari CEO

Laura Burdese, who joined the Italian luxury brand in 2022, will take on the role in July.

Harwell Godfrey Lil Buddies
EditorsDec 19, 2025
2025 Jewelry Superlatives: A Yearbook-Style Year in Review

The National Jeweler editors revisit the most noteworthy industry happenings and design trends from 2025.

Front of Jean Schlumberger’s ‘African Cat’ brooch
AuctionsDec 19, 2025
Jean Schlumberger’s ‘African Cat’ Is Purr-Fection

Need a gift for the cat lover who has everything? Look no further than our latest Piece of the Week.

Audemars Piguet Grosse Pièce
AuctionsDec 18, 2025
Audemars Piguet Reclaims Historic Pocket Watch at Auction

It purchased the “Grosse Pièce,” an ultra-complicated Audemars Piguet pocket watch from the ‘20s, for a record-breaking price at Sotheby’s.

Diamond ring in parts
Lab-GrownDec 18, 2025
Kira Jewels Debuts Custom Lab-Grown Diamond Jewelry Service

The lab-grown diamond grower now offers custom engagement and fashion jewelry through its Kira Custom Lab Jewelry service.

Terry and Cindy Chandler at AGS Conclave
EditorsDec 18, 2025
Terry Chandler Looks Back on 40 Years of Opportunity, Change, and Friends

Chandler got his start at Michelson Jewelers and has served as DCA president and CEO since 2001. He will retire at the end of the month.

Rendering of Bob’s Watches JFK airport store
WatchesDec 18, 2025
Bob’s Watches to Open Store in New York’s JFK Airport

The boutique is slated to open this week inside Terminal 8, offering pre-owned Rolex watches and more to international travelers.

JamAlert 1872x1052.png
Supplier BulletinDec 18, 2025
Cell Jammers Are Targeting Your Business. Here's How to Beat Them

Sponsored by Digital Monitoring Products

Fabergé egg pendant near gloved hand
CrimeDec 17, 2025
Man Pleads Not Guilty to Swallowing Fabergé Pendant

The special-edition egg pendant ingested in a New Zealand jewelry store was recovered after a six-day wait.

Ashley Zhang Jewelry Snake Necklace, Renato Cipullo Hematite Blaze Necklace, Vanessa Fernandez Studio Curva Wrap Hoops, Hernsdorf Tears of Aphrodite Necklace, Robinson Pelham Tsar Star Earrings, Marla Aaron Nymphenburg Lock, Lof The Valentine Ring
EditorsDec 17, 2025
2025 Jewelry Rewind: The Best Piece of the Week Picks

Associate Editor Natalie Francisco plays favorites with Piece of the Week, selecting a standout piece of jewelry from each month of 2025.

Lucy Hale in Jacquie Aiche’s Love and Desire Campaign
CollectionsDec 17, 2025
Lucy Hale Stars in Jacquie Aiche’s Holiday Campaign

The “Love and Desire” campaign is inspired by the magic that follows when one’s heart leads the way, said the brand.

SSEF logo
GradingDec 17, 2025
SSEF Announces 2025 Scholarship Winners

Two awardees will receive free tuition for an educational course at the Swiss lab, with flights and lodging included.

Pandora Alexander Lacik and Berta de Pablos-Barbier
MajorsDec 16, 2025
Pandora’s New CEO Will Step Up Early

Berta de Pablos-Barbier will replace Alexander Lacik at the start of January, two months earlier than expected.

JAR pendant brooch, fancy intense blue diamond
AuctionsDec 16, 2025
Suzanne Belperron, JAR Shine in Sotheby’s First Auctions at New HQ

Sotheby’s held its first two jewelry sales at the Breuer building last week, and they totaled nearly $44 million.

The Jewelry Symposium logo
Events & AwardsDec 16, 2025
TJS Now Accepting Scholarship Applications for 2026

Winners will receive free registration and lodging for its fourth annual event in Detroit.

×

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