Cool 18k/platinum jewelry sites

Hi,

My name is Ricardo,and I am looking for to visit 18k and platinum jewelry
sites,with comtemporary and modern designs.

The style I am more identified,is the German and the Swiss .

Suggestions and invitations will be very welcomed.

I have tried to find those through search engines like Yahoo and
similars,but the results are always very mixed.

What should be the right words to type for seaching such subject ?

How to concentrate the specifical subject in a specific country ?

What are the best search engines for this kind of search ?

Thank you,

Ricardo Bronfen
@Ricardo_Bronfen