How can I grow business for my online jewelry store?

[Gabrielle]

*I am not meaning to promote my business, I just really need help with opinions on why I am not selling anything and how to get myself business. My aim is not to gain business off of askers, just their opinions on improving.

My website is http://www.FashionsByGabrielle.com
I opened it in may 2012 I have made a FEW sales but I would at least like a sale a week.
I have put A LOT of time and effort into it and I don't know why I don't have a greater outcome.
I need help building a customer base and continual customers. I put so much into building up the website and I am pretty proud of the outcome.
I even made a facebook - https://www.facebook.com/fashionsbygabrielle
a twitter- https://twitter.com/fashbygabrielle
also a tumblr, instagram, and a mailing list
recently I even have been running ads, on google, facebook, and i might even try bing
with only an outcome of 2 facebook likes =[

i dont understand what i am doing wrong

why wont people buy from ? or even gain interest

PLEASE ANY OPINION IS GOOD
like if you like or dislike anything?
and why would you or wouldn't you buy?
how could i make people gain interest? how to make people want to buy ?
* I am not asking anyone to buy, I mean buy if you like but I am not asking this to get someone to buy

THANK YOU EVERYONE <3