William S. Carstens Sr, RJ
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Last updated: 8/30/2019
William S. Carstens Sr, RJ
Registered Jeweler
Professional Information
C. A. Schnack Jewelry Co.
1438 Dorchester Dr
71301-3408  United States
 [ Map ]
318 445-1446 (Phone)
318 445-1449 (Fax)
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Additional Information
Registered Jeweler, Annual Certification


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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

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info@ags.org (866) 805-6500