Pacific Gem Lab

Portland, Oregon, USA

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Jewelry Appraiser in Oregon
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About this Appraiser

Pacific Gemological Laboratory (PGL) is located in downtown Portland, Oregon, and is one of the Pacific Northwest's oldest (established in 1988) and leading jewelry appraisal service firms. Ms. Mona Miller is the Principle and Director of the appraisal practice, which offers a wide range of expertise in gems, jewelry, and watches; it is the only Jewelry Appraisal Lab in Oregon with an Accredited Gemologist Association (AGA) Certified Gemological Laboratory.

Ms. Miller is a highly respected mentor and teacher in the gem and jewelry profession with extensive experience in period and antique jewelry. Her qualifications include:

  • Fellow of the Gemmological Association of Great Britain, FGA
  • Graduate Gemologist − In Residence, GG, GIA
  • Fellow of the American Society of Appraisers, FASA
  • Master Gemologist Appraiser®, American Society of Appraisers, MGA
  • Independent Certified Gemologist Appraiser, American Gem Society, ICGA
  • American Society of Appraisers, ASA: Chairperson of the ASA Educational Foundation and Member of the Constitution and Bylaws Committee; some past positions held include Regional and Discipline Governor and International Gems and Jewelry Education Chair
  • Certified USPAP Instructor for the Appraisal Foundation
  • Certified Instructor for Oregon and Washington Insurance Professionals

At PGL your gem and jewelry valuations and consultations will be conducted in a secure, confidential, and professional environment by expert appraiser/gemologists. They provide accurate and affordable jewelry appraisals, certifications, diamond grading, and colored gemstone identifications. In addition, they offer consulting and expert witness services, as well as lecture and seminar presentations for civic and professional groups. So whether you need a report for insurance scheduling, estate or trust valuations, or confirmation of value − PGL is your complete source for expert valuation services. All their reports are prepared in compliance with the current Uniform Standards of Professional Appraisal Practice.

Please use the links at the top of this page to contact us and schedule your appointment or for further information.


The Business

  • Private Practice & Trade Appraiser
  • Primarily Appraiser
    Also Educator, Expert Witness and Broker
  • Principal + 3 staff Appraisers
  • Mon - Fri: 8.30am to 4pm
  • Mobile lab, Via jewelers & at Appraiser's office


  • Per-item & time-based fees
  • All major cards accepted
  • Full appraisal reports start at $110


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  • FGA, GG


  • AGA, AGS, Gem-A


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While you wait jewellery appraisal


Pacific Gem Lab
534 SW 3rd Ave
OR 97204

  • Accessible
  • Validated with purchase, close-by
  • By Appointment & ‘walk-ins’
  • View large map


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