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About The Appraisers

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Mona Miller

Master Gemologist Appraiser®

Mona Miller is the owner of Pacific Gemological Laboratory, in Portland Oregon. She has been actively involved in the gem & jewelry trade since 1980.

Mona is re-certified through professional affiliation examinations via the American Gem Society (AGS) on a yearly basis , and via the American Society of Appraisers (ASA) every two years. All business is conducted in conformity with the Uniform Standards of Professional Appraisal Practice of the Appraisal Foundation, and the Principles of Appraisal Practice and Code of Ethics of the American Society of Appraisers.

Professional Qualifications

Gemological Institute of America
Graduate Gemologist – In Residence Degree
Jewelry Design & Jewelry Retail– In Residence Degree
Graduate Retail Management – In Residence Degree
G.I.A. Charter Member of Alumni

Gemmological Association of Great Britain (FGA)

American Gem Society (AGS)
Independent Certified Gemologist Appraiser (ICGA)

Accredited Gemologist Association (AGA)
Regional Governor 1991-1993

National Association of Jewelry Appraisers (NAJA)
Senior Member

American Society of Appraisers (ASA)
Senior Member
Master Gemologist Appraiser (ASA-MGA)
College of Fellows (FASA)

Constitution & Bylaws Committee 2011 – Present

Past Positions Held in ASA:
Director – ASA Educational Foundation 2005 – 2018
Nominations and Awards Committee 2009 – 2012
Discipline Governor 2005 – 2008
International Budget and Finance Committee 2000 – 03 & 2005 – 08
International Gems & Jewelry Education Chair 2003 -07 & 2008-09
Gems & Jewelry Committee 1996 – 2007
International Regional Governor 1998-2002
President, Portland, OR Chapter 1995-1996

1994 & 2001: Who’s Who for Executives and Professionals
Life Member 2001

Accepted & served as expert witness:

Federal and State Court: Oregon, Washington, Nevada & California

Appearances for: Dissolution, Grand Theft, Theft, Fraud, Bankruptcy, Estates, Forensic, Damage Replacement & Insurance.

Teaching Experience:

Appraisal Foundation – AQB Certified USPAP Instructor
American Society of Appraisers

Classes listed below are primarily taught at the University level as a credited class such as Rhode Island School of Design (RISD), University of Georgia (UGA), George Washington University (GW), Northwestern University (NWU), University of California (UCI) among others.

Instructor: ASA POV 201 – Introduction to Personal Property Valuation
Instructor: ASA POV 202 – P.P. Valuation Methodology-Research & Analysis
Instructor: ASA GJ 205 – Gems and Jewelry Appraisal Theory, Methods & Application
Instructor: ASA GJ 206 – Gems and Jewelry Appraisal Techniques & Standards
Instructor: ASA Master Gemologist Appraiser Recertification Program
Instructor: ASA GJ216 – Advanced Gemological & Appraisal Techniques/Standards

Developer/Instructor: ASA GJ 303 – The Fashion & Flair
Fashion & Jewelry from 1760 – 1930.

Co-developer/Instructor: ASA GJ 310 – Finding Treasures
Discovering Jewelry-Inside and Out

Oregon and Washington Insurance Professionals: Certified Instructor

Additional references and extended vitae upon request

Mark Smith

Mark began his gemological career in 1980 at Carreras, Ltd., a jewelry store in Richmond, VA. Between 1982 and 1994, he was in charge of the appraisal and repair departments.

In 1994, he accepted a job in Portland at Carl Greve as manager of the appraisal department, and worked there until the close of the store in 2008.

After working briefly in jewelry retail, Mark joined the Pacific Gem Lab team in 2011.

Mark’s professional qualifications include:

  • Graduate Gemologist (GG), Gemological Institute of America
  • Certified Gemologist Appraiser (CGA), American Gem Society (AGS)

Bradley C. Pear

Brad has been active in the jewelry business since 1979 and has extensive experience with high-end diamonds, colored gemstones and watches. He joined us in 2015, relocating from the Metro Detroit area where he was co-owner of Campanelli & Pear, a retail jewelry store, and was for many years the appraiser at Detroit’s most exclusive jewelry salon, Jules R. Schubot Jewellers. Brad was thrilled to make the move to Portland and join PGL’s talented team of appraisers/gemologists.

Brad is re-certified through professional affiliation examinations via the American Gem Society (AGS) on a yearly basis, and via the American Society of Appraisers (ASA) every two years.

Brad’s professional qualifications include:
  • Graduate Gemologist (GG), Gemological Institute of America
  • Accredited Senior Appraiser, American Society of Appraisers (ASA)
  • Master Gemologist Appraiser ® (ASA)
  • Certified Senior Member, National Association of Jewelry Appraisers (NAJA)
  • Senior Gemologist, Accredited Gemologist Association (AGA)
  • Independent Certified Gemologist Appraiser, American Gem Society (AGS)
  • Past President, GIA Alumni Chapter, Michigan

Jill McIntosh


Jill entered the jewelry industry in early 2003 when she began her career in gemology as a diamond grader for G.I.A. in Carlsbad, CA. After working at G.I.A. for 10 years, Jill sought an opportunity to expand her expertise beyond diamonds and diamond grading into appraisal and valuation. In early 2013, she joined the team at Pacific Gem Lab where she continues her education as a gemologist appraiser.

Jill's professional qualifications include:

  • Graduate Gemologist (GG), Gemological Institute of America

Marika Emerson

Marika began working in jewelry in 2008 while apprenticing as a metalsmith under the direction of Angela Olsgard, a jewelry designer in Colorado. Relocating to Oregon in 2010, Marika designed and manufactured a boutique jewelry line before starting at Pacific Gem Lab in 2017. Marika works as the lab’s staff assistant and photographs jewelry for appraisal reports. She is working towards her Graduate Gemologist Diploma.

Marika’s professional qualifications include:

  • Accredited Jewelry Professional (AJP), Gemological Institute of America