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Claudia W. Hess, AAA Certified

Art historian, curator, educator, and art collector for over 30 years. Claudia is a veteran of countless Blue Chip Art Fairs, working with Worthington Gallery to offer the finest works to museum curators, renowned collectors, and celebrities. She owned Worthington Gallery West specializing in fine art and craft. 

She is a certified member of AAA, Appraisers Association of America.

A certified appraiser has

• met all of the "accredited" requirements

• passed the certification examination,

• submitted reports for review,

• documented logs for appraisal hours

• maintains continuing education requirements

• documented professional development hours


Uniform Standards of Professional Appraisal practice (USPAP) compliant through June 2020. She is qualified to do IRS appraisals.

Hess Art Advisory has valued works among many others by: Franz Ackerman, Mark Bradford Alexander Calder, Marc Chagall, Tracey Emin, Ann Hamilton, William Kentridge, Käthe Kolllwitz, Marilyn Minter, Yoshitomo Nara, Chris Ofili, Grayson Perry Pablo Picasso, Niki de Saint Phalle

Our Services


Hess Art Advisory provides detailed, objective, well researched, and photo documented appraisals for our clients. Located in the San Francisco bay area, we appraise worldwide in accordance with Uniform Standards of Professional Appraisal Practice (USPAP). 

Clients rely upon us for accurate and well documented appraisals to support evaluations in many contexts including:

•  Insurance

•  Damage & Loss

•  Estate Planning, Estates, Gift Tax

•  Blockage Discount

•  Charitable Contributions

•  Liquidation and Bankruptcy

•  Marital Distribution

•  Appraisal Review

What is your Warhol painting worth to the IRS? Your Rodin sculpture to the insurance company? Your Jean Prouvé chair to your soon-to-be ex-spouse?

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