I also did some repair work on a charm bracelet that was marked as
925 Tiffany, and allegedly from a reputable jewellery website. It
had a “brass” colour - we didn’t get it hot, but I’m sure it would
have had a low melting point.
It was only one charm, however - the rest, all hearts, seemed OK.
Was this just a single fake that had been added to a genuine item
after shipping from the manufacturer, or, were a certain percentage
of fakes being inserted by overseas manufacturers?
The nature of marking systems is that they are easy to fake. The UK
hallmark system is very thorough, but it would be incredibly easy to
make UKP 1000s by faking it, and the probability of getting caught
is fairly low
A common gold scam in the UK is pawning gold-plated base metal
signet rings. Pawning, rather than selling.