Designers & Makers
Bring products to market with compliant materials and trusted certification.
Helping you understand hallmarking and start your jewellery-making journey with confidence.
Whether you’re a hobbyist jeweller making pieces at home or an independent designer selling your first collections, Birmingham Assay Office is here to help. We know many new designers and makers feel uncertain about when hallmarking is required, how to get a sponsor’s mark, and what steps need to be taken to sell jewellery legally and professionally.
With over 250 years of experience, we provide designers and makers the support, education, and services you need to protect your creations, reassure your customers, and grow your passion into a trusted business.
Your challenges...
As a new designer & maker we understand the questions and challenges you may be facing:
- Do I need to hallmark every piece I make?
- At what weight is hallmarking required by law?
- How do I apply for my sponsor’s mark and submit items for hallmarking?
- What training is available to help me understand compliance and customer expectations?
- How can I add credibility when selling at markets, online, or to friends and family?
How Birmingham Assay Office supports you...
Hallmarking Made Simple
- Clear guidance on UK hallmarking law and when it applies (e.g. items above the legal weight thresholds).
- Help with registering your sponsor’s mark which is your personal maker’s signature.
- Step-by-step support via our Customer Experience team on how to submit items for hallmarking.
Training & Education
- Hallmarking Training Courses designed specifically for beginners, covering:
- When hallmarking is required.
- How to apply and use your sponsor’s mark.
- What your hallmark tells your customer.
- Practical guidance for selling jewellery legally and confidently.
Gem Services for Makers
- Optional gemstone identification and reports for makers incorporating stones into their designs.
- Adds extra reassurance when selling pieces that include diamonds or coloured gemstones.
Support for Small-Scale Selling
- Whether you’re selling online (Etsy, Shopify, Instagram) or at local craft fairs and markets, our hallmarking services and training give you the credibility and compliance customers look for.
- Guidance to help you explain the value of a hallmark to buyers.
Get Started with Hallmarking
If you’re unsure whether your jewellery needs hallmarking, or you want help registering your first sponsor’s mark, we’re here to guide you every step of the way.
to book hallmarking training, apply for your sponsor’s mark, or start submitting your creations for hallmarking.
Why choose Birmingham Assay Office?
- Heritage & Trust – Over 250 years supporting jewellers, designers, and makers of all sizes.
- Independent & Impartial – The Birmingham hallmark is internationally recognised and trusted.
- Approachable Expertise – Training and services designed for beginners as well as experienced makers.
- Confidence to Grow – We help you take the first steps from hobbyist to professional.
Contact us
Birmingham Assay office
0121 820 0773
Address
1 Moreton St, Birmingham, B1 3AX