Pacific Gemological Laboratory, Inc. (P.G.L.), located in downtown Portland, is one of the Pacific Northwest's oldest (Est. 1988) and respected jewelry appraisal services, offering a wide range of expertise in all matters relating to gems and jewelry. Pacific Gem Lab prepares professional, accurate, and affordable jewelry appraisals, certifications, diamond grading, and colored stone identifications, consulting services, expert witness, lecture and seminars. In most cases, our expert staff can assist you while you wait. We accept special appointments for multiple or complex appraisals and large estates. We also have a complete portable laboratory available for travel to off-site locations. Pacific Gem Lab is owned by Mona Miller GG, FGA, FASA, ICGA. She is a Fellow of the Great Britain Gemmological Association (FGA), in residence G.I.A. Graduate Gemologist (GG), Senior Member - Master Gemologist Appraiser & Fellow of the American Society of Appraisers (ASA); Accredited Senior Gemologist, AGA; Senior Member, National Association of Jewelry Appraisers (NAJA) & member of Jewelers Vigilance Committee. It is our sincere wish to be your source for your jewelry appraisal needs. We maintain the standards in jewelry appraisals for the Pacific Northwest market. We are in compliance with the Uniform Standards of Professional Appraisal Practice (USPAP). We look forward to doing business with you.