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