![[em1]](http://img.alibaba.com/images/eng/style/icon/emoticons_smile.gif)
1 search some jewerly knowledge on google, such like how to define the level of dimond, how to catch the latest style and so on.
2 you may learn some policy on export & import business or domestic trade. As I know the standard in this industry is very strict.
3 try to contact the members in this area on alibaba.com, learn some practise experiences
Then, I think you will be an expert in this area.
Good luck!