Preferred Partners

We are proud of our pedigree, experience and knowledge.

For more information about our accreditation or our associates in the field of Jewellery Valuation please choose a link below.

Fine art valuation

Our great passion is to work with collectors to create the most wonderful collections of art. We are here as art advisors to guide you through the art world whether it be purely for the love of art or for investment.

Our office in Berkeley Square, London, is an hour away and we have satellite offices in Luxemburg, Belgium, the United States, France, The UAE and Spain.

T.H. March

Best known as the foremost brokers for the jewellery trade, offering a wide range of products, T.H. March can offer you a range of options to cover your jewellery if it is lost, stolen or damaged.

Our experienced advisors can help you to decide whether you need separate insurance or to include cover as part of a home insurance policy.


The Gemmological Association of Great Britain, or Gem-A, is the world’s longest established provider of gem and jewellery education.

Our Gemmology Diploma evolved from the first gem course proposed for the UK jewellery trade in 1908, and our prestigious Gemmology and Diamonds Diplomas — taught in seven different languages and 26 countries around the world — are recognised throughout the world.



Valuations need to be undertaken today to a very high standard and only the highest level is represented by our members.

All IRVs, numbering around 160 throughout the United Kingdom and Irish Republic, have proved their expertise to their peers, with formal qualifications and substantial experience within the industry. They provide a professional service you can trust.


What do I do next?

Whatever the purpose of your valuation, don’t delay.
Your insurance may be suspended until a full valuation is done, or Probate may be delayed.
Make an appointment
Julian Cousins

Julian Cousins


Julian Cousins has worked in the jewellery and silver industry for over 30 years and is a third-generation jeweller. He has a degree in Fine Art and Antique Valuation from Southampton Solent University, has completed the National Association of Goldsmiths’ Gemmological Diploma, their Certificate of Appraisal Theory and the Gemmological Association of Great Britain’s Gemmology and Diamond Diplomas.

He is former Vice Chair of the National Association of Jewellers’ Professional & Technical Standards and Institute of Registered Valuers Steering Group and  a founder member and Treasurer of the Academy of Valuers. He is also past Chairman of the Jewellery Valuers Association, the only independent governing body in the UK exclusively for jewellery valuers.

Gem-A Member 2023

Our Accreditation

The Gemmological Association of Great Britain

The Gemmological Association of Great Britain, or Gem-A, is the world’s longest established provider of gem and jewellery education.They serve the interests of the gem and jewellery industries through the high standards of education on their courses and their support for global gemmological research.

The Institute of Registered Valuers

Jewellery Valuations with standards.

The Institute of Registered Valuers (IRV) is the UK’s leading authority of jewellery, watch and silverware appraisers who maintain exacting standards for the longest serving and most recognised valuation trade body, regulated by the National Association of Jewellers.

Institute of Registered Valuers
Jewellery Valuation - how long does it take?

How long does it take?

Most appraisals, including cleaning, gem testing and photography of under 10 items can be completed in 2-3 working days, although it may be as long as a week or even 2 to schedule-in a mutually convenient time. Sometimes additional research may be required, extending this timescale.

Jewellery Valuation - what do I need to bring?

What do I need to supply?

As well the items to be be valued, for Insurance valuations, please supply the most recent copy of your Insurance policy and policy schedule. For all valuations, please supply all existing paperwork relating to the items to be valued: original purchase receipts, previous valuations, receipts for past repairs and any diamond, or coloured gemstone grading reports. Failure to provide all relevant paperwork may result in a second, chargeable consultation.

Jewellery Valuation - how much does it cost?

How much does it cost?

If you would like us to provide a valuation of your jewellery, you will be asked to sign our Privacy Statement and agree to our take-in explanatory notes and limiting conditions

Preferred Partners

Preferred Partners