Thats a very good question and until I started making jewelry I did not know either...this site should help you so much understand the labeling...it did me. http://askville.amazon.com/%23925-Sterling-silver/AnswerViewer.do?requestId=499812
I was trying to read up on what you had said..."Thats a very good question and until I started making jewelry I did not know either...this site should help you so much understand the labeling...it did me. http://askville.amazon.com/%23925-Sterling-silver/AnswerView er.do?requestId=499812"