Majors

AGS Honors Late Peter Yantzer, Holds Time Capsule Ceremony

MajorsJun 04, 2026

AGS Honors Late Peter Yantzer, Holds Time Capsule Ceremony

The organization also announced its international board of directors for the 2026-2027 term.

AGS at Peter Yantzer Building dedication
The former American Gem Society Laboratories building was renamed the Peter Yantzer Building. Seen here (from left to right) are Brock Wilke, Jason Quick, Cathy Calhoun, Melissa Harman, Ruth Batson-McCluer, and Chad Harman.
Las Vegas—The American Gem Society unsealed a time capsule last weekend at its headquarters in Las Vegas, and honored a longtime employee.

In 2001, the AGS team filled a capsule with letters, photos, business cards from staff and members, marketing brochures, and a CD of archival materials.

It was opened on Saturday, 25 years later, serving as a snapshot of the lives and work of its employees.

AGS Katherine Bodoh and Bryan Moeller opening time capsule
AGS CEO Katherine Bodoh and Bryan Moeller, president of the AGS International Board of Directors, opened the time capsule on May 30.


The evening also included a special honor for the late Peter Yantzer, the former executive director of AGS Laboratories. He died in January at the age of 77.

The former AGS Laboratories building was renamed the Peter Yantzer Building in honor of his contributions to gemology. It now serves as a research and development laboratory for GIA.

“Peter left a mark on this industry that lives well beyond those walls, and we wanted to honor him in a meaningful way,” said AGS CEO Katherine Bodoh.

Cathy Calhoun, past AGS president and Robert M. Shipley Award recipient, reflected on Yantzer’s legacy.

“It's because of Peter that diamonds began to be cut better, with more exact proportions. That is a legacy that lives on in the research work conducted in a building that will now carry his name,” said Calhoun.

Yantzer was a key part of the development of the AGS Light Performance Cut Grade.

 Related stories will be right here … 

AGS also announced the approval of the 2026–2027 AGS international board of directors.

The following leaders will hold an executive position.
President: Bryan Moeller
President-Elect: Mitchell Clark
Secretary: Denise Richards
Sr. Advisor: William Farmer, Jr.
Treasurer: Larry Rickert

The following members will serve as committee chairs. :

Conclave Subcommittee: Denise Richards
Education Committee: Kevin Mays
Finance, Audit, & Legal Committee: Larry Rickert
Gemological Sciences Committee: David Mazer
International Guild Council: Amanda Coleman-Phelps
Membership Committee: Sarah Person
Partner Advisory Committee: Brecken Farnsworth
Young Titleholders Committee: Courtney Sivard

The directors-at-large are as follows.

Chris Anderson;
Michael Fleck;
Adam Graham;
Brad Hampton;
Kendra Lindell;
Melissa Quick; and
Judd Rottenberg.

“This board represents everything AGS stands for: knowledge, integrity, and a genuine commitment to this industry,” said Moeller.

“I've had the privilege of watching AGS shape careers and protect consumers for years, and I don't take lightly what it means to help lead that mission. I'm honored to serve alongside people who care about this work as deeply as I do."

AGS also extended its gratitude to the following members who will leave the board after serving full terms:
Sarin Bachmann;
Ryan Berg;
Dave Bindra;
John Carter; and
Alexis Padis.

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