Mehdi Saadian is a jewellery valuer and gemmologist based in Hatton Garden, Central London. As the founder and director of Saadian & Associates Appraisal Services Ltd and Jewellery Advisory Services (JAS), he provides independent jewellery valuation, consultancy and expert witness services for clients across the UK.

He is a Graduate Gemologist (GIA), holds the Graduate Pearls qualification (2021), and the National Association of Jewellers (NAJ) Certificate of Appraisal Theory (2019). His professional work includes valuations of diamonds, coloured gemstones and pearls for a range of personal, commercial and legal purposes.

Services and Features

Saadian & Associates Appraisal Services Ltd provides jewellery valuations for insurance, probate and legal matters, diamond, coloured gemstone and pearl assessments, official appraisal reports, expert witness services, consultancy for jewellery professionals and collectors, and specialist training in gem and jewellery appraisal.

The company was incorporated in 2021 and operates under Mehdi Saadian's direction. He serves as Vice Chair of the National Association of Jewellers (NAJ), is a Full Member of The Academy of Experts (TAE), and has worked as an expert witness in cases involving organisations including the National Crime Agency (NCA) and HMRC Fraud Investigation Service.

Location and Access

The valuation office is located at New House, Suite 15, 2nd Floor, 67–68 Hatton Garden, in the Farringdon area of Central London, with convenient access via Chancery Lane and Farringdon Underground stations. For detailed directions, please refer to the Maps & Address section of this page.