American Gem Society Team

American Gem Society Team

Lauren headshot
Lauren Johansen, CSA

Director of Membership

Phone: (866) 805-6500 ext. 1005

Amanda headshot
Amanda Westmoreland, CSA

Community Ambassador

Phone: (866) 805-6500 ext. 1004


Katherine headshot
Katherine Bodoh, RJ

CEO, American Gem Society & AGS Laboratories

Phone: (866) 805-6500 ext. 1014

John Carter headshot
John Carter, CGA

President: AGS Board of Directors

Phone: (309) 663-0538





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Mission Statement

The American Gem Society (AGS) is a nonprofit trade association of fine jewelry professionals dedicated to setting, maintaining and promoting the highest standards of ethical conduct and professional behavior through education, accreditation, recertification of its membership, gemological standards, and gemological research.

The Society is committed to providing educational products to inform and protect the consumer and to contributing to the betterment of the trade by creating industry standards to protect the jewelry-buying public and the fine jewelry industry as a whole.

AGS Laboratories, founded to support the AGS mission, is a nonprofit diamond grading laboratory with a mission of consumer protection. Adhering to the AGS Diamond Grading Standards, AGS Laboratories is dedicated to offering diamond grading reports that provide consistency and accuracy based on science.

American Gem Society

8881 W. Sahara Ave. Las Vegas, NV 89117 (866) 805-6500