Hallmarking - adding sponsor's mark

[mochiandmocha]

Sorry for the following post if not in the right place, but we're REALLY beginning so any info would help on that topic:

Are sponsor's marks compulsory? What exactly do you need to do with your piece of jewellery to be "legal"? How about enamelled pieces, I guess you just send the metal work and enamel it afterwards...? I'm a bit lost... help...?

Woups! looks like I was too panicked to read all the thread, but now I've found them ! Thanks everyone!!

Yet, I'm not 100% sure if I can use a sponso'r mark myself?...

[Hart-Star]

The best place for getting the full advice for you is the Edinburgh Assay office website - they cover most things that you need to know:

The basic issues as I understand it are :

The type of precious metal(s)
The weight of the assembled piece
Whether you are flogging the stuff in the UK

The oddity is that basically you only need the Sponsor's mark + Fineness + Assay Office stamps, and that the date stamp letter is optional.