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Credentials

Tim & Kim QuigleyTimothy and Kimberly Quigley are holders of the Certified Gemologist Appraiser (CGA) title from the American Gem Society (AGS). The AGS is the only organization in North America that certifies applicants as "Appraisers" after having successfully passed in-depth appraisal exams. Yearly re-testing is required to maintain these credentials. No other certification in the jewelry industry has this type of requirement.

The CGA title is the highest level of achievement in the jewelry industry. Currently in North America and Canada only about 425 individuals have earned this prestigious title.

A Certified Gemologist has undergone gemological training and certification from the Gemological Institute of America (GIA) as well as the AGS (American Gem Society) and they are specially trained in diamond grading, gem identification, synthetic gemstones, gemstone enhancements, and gem and jewelry care.

In order to maintain these titles as well as the title of American Gem Society retailer firm, TQ Diamonds has the most up to date diamond grading lab. This diamond grading lab also helps our graders and appraisers maintain the highest level of integrity and ethics when selling or appraising diamonds.