IAS Valuations & Consulting

Comprehensive Valuations for Insurance, Probate, and Family Matters

IAS Valuations & Consulting Limited

IAS Valuations & Consulting provides trusted Jewellery Valuations Across the Midlands including Stratford upon Avon, Warwick, Solihull, Coventry, Cotswold’s as well as Banbury, Bicester, Daventry, Cheltenham, Worcester and surrounding areas.

An independent jewellery valuation company specialising in both modern and antique pieces. We stay up to date with diamond and gemstone trends, precious metal prices, and market changes to ensure every valuation reflects true and current value.

Our principal valuer, Ilona Stachowiak, has been in the jewellery trade since 2015 and holds multiple professional qualifications, including Gemmology Foundation and Diamond Grading with Gem-A, a First-Class BSc (Hons) in Gemmology and Jewellery, and GIA Applied Jewellery Professional status.

Ilona is also a Consultant Valuer for Jewellery Advisory Services (JAS) contributing to expert witness work, specialist research, and complex valuation projects across the UK.

We offer flexible appointments, including home visits, and every valuation is completed with precision, discretion, and full compliance with NAJ and IRV standards.

Ilona is a Member of the National Association of Jewellers (MIRV), a Diamond Member of the Gemmological Association of Great Britain (DGA), and an independent valuer trusted throughout Warwickshire and the Midlands.


As part of her professional practice, Ilona also works in collaboration with Jewellery Advisory Services (JAS) — a nationally recognised valuation and consultancy firm known for its integrity, precision, and dedication to excellence.
In 2025, JAS was honoured with the National Association of Jewellers’ “Team of the Year” Award, acknowledging their outstanding professionalism and contribution to the UK jewellery industry. As a Consultant Valuer within the team, Ilona contributes her expertise to specialist research, complex valuation cases, and expert witness work — further enhancing the quality and depth of service offered through IAS Valuations & Consulting.
Read more about Jewellery Advisory Services and the NAJ Team of the Year Award

What is a valuation?

It is a legally binding document providing a description of the item and its value for the requested purpose. The valuation is completed by an expert using specialist equipment and thorough research. On completion, we provide a full written valuation including photographs of the items assessed, which are presented to you in form of a secured PDF file or printed A4 bound folder.

Why choose a registered valuer in Warwickshire?

Having your jewellery valued by a competent and educated valuer is of utmost importance. A registered valuer is a professional individual who has completed extensive training and passed multiple qualifications in order to qualify to register with professionally recognised bodies such as NAJ or IRV. By choosing a Registered Valuer, you can be assured that the valuation documents you receive are based on thorough research and are completed to the highest standards.

Email info@iasvc.co.uk ¦ Call 07440588724