I found the perfect ring – it’s absolutely beautiful, and it’s everything I’m looking for in a wedding ring – but it’s only available as a size 7.

http://www.overstock.com/Jewelry-Watches/Black-Hills-Gold-and-Peridot-Ring/851572/product.html

I wear a size 6. Do any of you know where I can find it in a size 6, or one like it?
Or, alternately, will it still last a lifetime if I get it resized?

It is tarnished on the band right around the setting for the stone. (Peridot)
I need to know a safe way to remove the tarnish.
Thanks!