How to Assess a Jeweller’s Work

Start with the portfolio

The most direct way to assess a jeweller's work is to look at what they have actually made. Most independent jewellers maintain a portfolio of completed commissions, either on their website, on social media, or available in person at a consultation ⁽¹⁾. When reviewing a portfolio, look for variety, consistency, and evidence that the jeweller can work at the level of complexity and finish you are hoping for. A portfolio showing only simple designs may not be reassuring if you want something intricate; equally, a jeweller who shows their process – sketches, CAD renders, and finished pieces – gives you more confidence about how a custom project is managed.

Reviews: independent platforms matter most

Most jewellers will show positive testimonials on their own website, but these are selected and edited by the business itself. More useful are reviews on independent platforms such as Google, Trustpilot, or Which? Trusted Traders, where a business cannot filter what appears ⁽²⁾. Look for patterns rather than individual comments: consistent praise for communication, accuracy, and finishing quality is more meaningful than a single glowing review. A business with a high volume of reviews over time is generally more reliable than one with only a handful, however positive they are.

Professional memberships

The National Association of Jewellers (NAJ) is the UK's leading trade body for the jewellery industry, representing retailers, designers, makers, and valuers. Every NAJ member commits to the organisation's Code of Conduct, which is based on honesty, integrity, and professionalism, and the NAJ provides a mediation service for consumers if standards fall short ⁽³⁾. Membership is voluntary, not compulsory, so not every reputable jeweller will be a member – but seeing the NAJ mark is a useful indicator that a business has opted into a recognised professional standard. The Responsible Jewellery Council (RJC) certification is also worth noting for jewellers who make ethical sourcing claims ⁽⁴⁾.

Hallmarking compliance

In the UK, it is a legal requirement for most precious metal jewellery above a minimum weight to be hallmarked by one of the four official Assay Offices (London, Birmingham, Sheffield, or Edinburgh) ⁽⁵⁾. A hallmark confirms the metal's purity independently of whatever the jeweller says. If a jeweller is vague about hallmarking, cannot explain what marks will appear on your finished ring, or sells pieces without the appropriate marks, this is a significant red flag ⁽⁶⁾. A straightforward, confident answer about hallmarking is a basic test of a jeweller's knowledge and compliance.

Questions to ask before committing

Once you have reviewed a jeweller's portfolio and checked their credentials, a direct conversation reveals a great deal. Useful questions include:

• Is the ring made in your own workshop, or sent to a third-party maker? ⁽¹⁾
• Can I see the CAD render and approve it before manufacture begins?
• What does your quoted price include – are there any additional charges for hallmarking, stone setting, or finishing?
• What is your timeline from commission to delivery?
• What happens if I want a small change after seeing the CAD?
• What after-sales services do you offer – for example, resizing, cleaning, or claw checks? ⁽²⁾

A jeweller who answers these clearly and without hesitation is likely to be well organised. One who is evasive or vague about process, pricing, or timeline warrants more caution.

Trust your instincts

How a jeweller communicates before you commission anything is a reliable indicator of how they will behave during a project. A jeweller who listens carefully, asks thoughtful questions about your brief, and explains their process clearly is more likely to deliver a result you are happy with than one who pushes quickly towards a sale ⁽⁷⁾.