Suzanne Martinez
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Suzanne Martinez

Suzanne Martinez is a highly-credentialed senior gemologist, jewelry appraiser, jewelry historian, owner of and curator for Lang Antiques and She actively buys from sellers all over the world and in our store. Suzanne is also the founder of Antique Jewelry University an online encyclopedia about jewelry history and marks.

Suzanne started collecting rocks and minerals as a child, and by the time she was 13, knew that the jewelry world was her passion. For fun she makes enameled jewelry, studies natural history, Latin American cultural anthropology and goes on gem safaris.

Her jewelry credentials include:

  • Graduate Gemologist Diploma received from the Gemological Institute of America in residence at Santa Monica December 1978
  • GIA Alumni Member since 1981
  • GIA Alumni Chapter co-president since 1992
  • GIA Alumni Global committee 1999 – 2005
  • GIA Global Committee Chair 2005
  • National Association of Jewelry Appraisers, Senior Member
  • Accredited Gemologists Association, Accredited Senior Gemologist
  • Accredited Gemologists Association, Certified Laboratory
  • The American Society of Jewelry Historians, Member
  • Association for the Study of Jewelry and Related Arts, Member
  • American Gem Trade Association, Member
  • International Colored Stone Association, Member
  • Revere Academy – Ongoing student of goldsmithing
  • Media adviser for historical jewelry articles


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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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