Jack Holowczak

Jack Holowczak is one of the world's foremost luxury goods authentication specialists and a personal property appraiser delivering USPAP-compliant reports, with over a decade of experience and more than 2 million items examined across 50+ brands including Hermès, Louis Vuitton, Chanel, Dior, Gucci, Prada, Rolex, and Cartier.

He is the Founding Director of PROVENANCE, a luxury authentication, appraisal, and advisory practice, and the Principal Product Architect of Veriul AI, a computer vision authentication platform for luxury goods.

He maintains a dedicated personal property appraisal practice delivering USPAP-compliant reports for insurance replacement value, fair market value (estate, divorce, equitable distribution), IRS charitable donation (Form 8283), IRS estate tax (Form 706), and Canadian deemed-disposition (CRA fair market value at death) purposes. He is a qualified appraiser under 26 CFR §1.170A-17(b)(2)(i)(A), with specialty depth in fine jewelry, Group of Seven and Canadian historical art, sterling silver, watches, and luxury goods.

He is a qualified expert witness available in all U.S. and Canadian jurisdictions, providing forensic authentication reports, valuations, and testimony for counterfeiting, insurance, estate, customs, and consumer protection matters. He holds an Honours BA from the University of Toronto with additional studies at the University of Oxford, and is the author of Optionology (2023).