Robert C. Aretz, AAA / GG / ISA-CAPP / NAJA
1990, Graduate Gemologist - Gemological Institute of America (GIA)
2005–present, Senior Member - National Association of Jewelry Appraisers (NAJA)
2000–2005, Member - National Association of Jewelry Appraisers (NAJA)
2008–present, Certified Member - ISA-CAPP - International Society of Appraisers (ISA)
1997–2008, Accredited Member - International Society of Appraisers (ISA)
1995–present, Certified Member - Appraisers Association of America (AAA)
1982–present, Member - Appraisers Association of America (AAA)
Board of Directors (1986–1992) (2002–2007)
Treasurer (2004–2007)
Ethics Committee (2004–2007)
Admissions Committee - current member
Past Chairman of the Gems and Jewelry Certification Committee
1997–2004, Treasurer - The American Society of Jewelry Historians
Lecturer - Appraisers Association of America - one day jewelry seminar (2006)
New York University Jewelry Program (1995, 1996, 2002)
International Society of Appraisers Annual Conference (1998)
NAJA annual conference (2010)
Expert Witness (jewelry), in New York State Court
2014, Completion of USPAP course taken through the AAA
2011, Color Vision Results FM-100 - Hue indicates superior color discrimination (FM - Farnsworth-Munsell)
2013, ISA re-qualification course (Certified Member)
1997, ISA Core courses, 101, 102, 103
2012, GemGuide seminar Ruby and Sapphire treatments
2003, GIA Advanced Gemology
1999, GIA seminar Focus on Pearls
1997, GIA seminar Detecting Synthetic Diamond
1996, GIA seminar Detecting Treated Emerald, Ruby and Sapphire
1995, GIA seminar Detecting Treated Diamonds
1972, B.S. Marketing - Duquesne University, Pittsburgh, PA
1967, One week resident Diamond Setting course, GIA, New York, NY
1966, Bowman's Technical School, Lancaster, PA - Jewelry Making
1995–present, President - Gem Appraiser's Laboratory II, Inc., d/b/a Gem Appraisers & Consultants, New York, NY
1980–1995, Associate - R.C. Nelson & Sons, Inc., New York, NY - Dealers in fine colored stones, diamonds, antique jewelry, and colored stone cutting. Appraiser and buyer specializing in estate jewelry.
1987–1995, Appraiser for the U.S. Navy Resale Offices, Staten Island & Norfolk, VA
1981–2001, President; 1973–1981, Tresurer - Robert C. Aretz, Inc., Easton, PA
1969–1973, Hardy and Hayes - Jewelers, Pittsburgh, PA
1966–1968, Bixler's Jewelers, Easton, PA - Goldsmith and Platinumsmith
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