Are you looking for an appraisal of the design or functionality? The logo needs to be changed - its a very poor quality .jpg image which reflects poorly on your image if it looks bad, which it does. Home, about us and services don't show any information, but I suppose you are adding content. A clearer explanation of what your site is and does would be helpful. You have a very short time to do this with your visitors - they will leave as quickly as I wanted to when they don't know what they are looking at or what your site stands for. Hope this was helpful.
Use antialised text in photoshop or your image program to get a smoother onscreen appearance of text.
As for me you're already affiliated with many jewelry stores – and most of them (if not all) have a perfect reputation in this business – so congratulations – you did a great job! The customer can easily find what he's looking for in such variety of items and diamonds – but think about a search box or something (this will make the search of the jewelry much easier and faster).
I just rechecked your website – I can see you started implementing a search option – that's what your website needed the most. It was a good idea to provide the customer also with the pictures of the items he's searching for, but to my mind they are of poor quality and need some work. But don't get discouraged... it looks to me to be a great start!
Hey ... nice design ... did you do it yourself ? I agree with Catling. You did a pretty nice job on the search function too. Are you really showing all your discounts of your partners ?