With more than 40 years of professional experience in gemology and personal property valuation, this expert witness provides analysis and testimony in matters involving gemstones, jewelry, coins, and currency. Over 30 years of expert witness experience include consultations, depositions, and courtroom testimony in federal and state courts. The expert has appeared in U.S. District Courts, U.S. Tax Court, U.S. Bankruptcy Court, and multiple California Superior Courts in connection with gem and jewelry identification and valuation disputes. Litigation work addresses issues of authenticity, grading accuracy, market value, and financial damages involving diamonds, colored stones, fine jewelry, watches, coin collections, currency, silver, and related tangible personal property.

The expert’s practice encompasses laboratory testing and grading of diamonds and colored gemstones, independent appraisal of jewelry and watches, and valuation of coin collections and currency. This professional has established and operated gemological laboratories dedicated to testing, grading, and appraisal services, as well as consultation regarding gemstone and jewelry industry practices. Additional technical capabilities include gemstone cutting and recutting, treatment services, jewelry design, and brokering in the resale market. Appraisal and consulting assignments have been performed in more than 20 U.S. states and multiple foreign countries, reflecting experience with cross-border valuation and asset identification matters.

Professional credentials include Graduate Gemologist (G.G.) and Accredited Senior Appraiser (A.S.A.). The expert completed formal education in gemology and valuation methodology, including advanced coursework in appraisal practice, ethics, report writing, and personal property valuation. Service as a Director of a national gem trade association and prior leadership roles within professional appraisal and gemological organizations reflect involvement in industry governance and standards. Published technical work addressing gemstone weight estimation and appraisal methodology provides an additional credibility anchor within the field.