I have this necklace that was given to me by a friend who owned a jewelry store. It was for my fiance yada yada, but now i want to sell it. He told me it was gold, but its weird, it has the stamp of "21c" on it. here are pictures.

http://img185.imageshack.us/i/1012740.jpg/

http://img713.imageshack.us/i/1012742f.jpg/

Can anyone give me any brief, quick info on saudi gold? I weighed it out and comes to 7.8grams or so. Thanks