This profile reflects public professional-association directory records observed by Vasari through Aug 26, 2026. Verify credentials, services, and availability directly with the source association. Inclusion is not a Vasari endorsement.
About
René Lahn is a senior art specialist and certified art appraiser with over two decades of professional experience in the field of Post-War & Contemporary Art. Over the course of more than 14 years at Christie’s, he served as Senior and International Specialist and was responsible for major consignments to auction across key international markets, advising collectors, estates, and institutions on complex transactions at the highest level.Based in Switzerland, René is the first and only art appraiser internationally to combine certification from the Appraisers Association of America (AAA) with recognition as an SEC-certified Art Expert under the worldwide ISO/IEC 17024 standard—the internationally acknowledged benchmark for professional competence and impartiality. This dual qualification brings together the most respected U.S. and global standards of appraisal excellence, ensuring full compliance with both USPAP (United States) and ISO/IEC (international) requirements for professional valuations.Through René Lahn Fine Art AG | Appraisal & Advisory Services, he provides certified valuation and strategic advisory services to private collectors, family offices, financial institutions, and museums worldwide. His work is distinguished by its independence, methodological rigor, and deep understanding of the global art market’s economic and institutional structures.René divides his professional life between New York and Zurich, working closely with clients throughout the U.S. and Europe. Always within reach, he can be contacted directly through his U.S. mobile or Zurich office.Since 2020, clients have relied on René as a discreet, trusted, and internationally recognised expert for cross-border appraisal assignments requiring the highest levels of accuracy, transparency, and professional integrity.