Sterling Gemological Services Inc

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As experts in the field of fine jewelry and gemstones, we offer a full range of appraisal services. Our laboratory is fully equipped with all of the more recent innovations in gemological testing and our firm has achieved the prestigious designation of Independent Certified Gemologist Appraiser Firm with the American Gem Society.

Deborah Wieditz, our president and senior appraiser, is an Independent Certified Gemologist Appraiser and Graduate Gemologist with over 27 years of experience in the jewelry industry. She keeps current with all of the technical changes in the industry by attending GIA seminars and trade conferences. She is an Independent Certified Gemologist Appraiser with the American Gem Society, a Graduate Gemologist and member of the GIA Alumni Association and a Certified Member of the National Association of Jewelry Appraisers.