Sapphire and diamond engagement ring
Independent Valuations for Fine Jewellery
& Watches
Confidential, unbiased and expert valuations

Valuations at your home, office or store
​ Fully equipped mobile gem testing lab
A Member of the Institute of Registered Valuers
Gemmologist & Diamond specialist

Jewellery Valuations


S Dowthwaite FGA DGA LTD is a professional, confidential jewellery and watch valuation service based in Dorset. We will carry out valuations throughout Dorset, Wiltshire, Somerset and Hampshire, covering other areas by areas by arrangement. Valuations are also available via secure post.

We offer valuations to the public, insurance companies, auction houses and throughout the jewellery trade. We specialise in on-site assessments making use of reliable and portable gemstone testing technology. All valuations and assessments are independently undertaken by our fully qualified registered valuer, 

Stephanie Dowthwaite has extensive trade experience and holds the Gem-A's prestigious gemmology diploma (FGA) and diamond diploma (DGA). This is in addition to the National Association of Jewellers Professional Jewellers Diploma (P.J.Dip). She is a Fellow of the National Association of Jewellers (FNAJ) and a Member of the Institute of Registered Valuers (MIRV).

Stephanie prides herself in remaining abreast of current trends and developments in the diverse and constantly evolving industry of jewellery. She maintains her knowledge by attending lectures, workshops and conferences with her peers.

Stephanie also has a keen interest in antique jewellery and is a member of the Society of Jewellery Historians.