What does the 925 silver jewelry stamp mean?

Can all rings be re-sized?

I have a scratch on my wedding ring band. How can I repair it?

What is gold plated jewelry?

How can I re-melt old silver and make it into new silver jewelry?

How can I paint base metal jewelry?

What is the difference between white gold and yellow gold?

Can the 925 stamp on silver jewelry be faked?

How do I get tarnish smell out of old jewelry?

I heard it's dangerous to wear copper jewelry. Is this true?