It's expensive to have them professionally cleaned, but up until this past Christmas I hadn't found a product that allowed me to clean them at home. I tried Goddard's per Tiffany's recommendation, but it didn't work. Well, on my stocking list for Christmas I put sterling silver polish and my dad found a product that actually works!!! It's called Hagerty Silversmiths' Polish. I love it!!! It's fast, easy, and it WORKS!
My Tiffany heart pendant and chain on my Elsa Peretti "s" pendant were looking pretty bad.
You just use a rag and apply the polish on the jewelry.
Voila! My earrings and necklaces are like new!