Ok, I'm going to just tell you my first impression.
The intro is clean, but too white, almost too symetrical.
The links, I love the effect on your thumbnails. Howevere, there is a lot of empty space at the bottom of your site that you need to take out. I believe it's on every page.

Your tags :Simply Beautiful Jewellery... you may want something more catchy while keeping the keywords. Same for your title, logo, etc.

Jewellery vs. jewelry ( I didn't know you could write it 2 ways... you might want to make 2 pages for that typo)

You might want to hide the link to http://www.sitemeter.com/
Also make sure it links to a new page so you don't lead your visitors out of your site.
-- Can't you get detailed statistics on your server? It may be more professional.

I also find the buying experience a little confusing at first. I think you need to add color. It's hard to see the links, it's too small, also. You must be using the smallest font. Go up an inch. My eyesight is good and i have trouble. Imagine the old ladies...

You may want to separate the text:
"The system is completely secure so you can buy in confidence. Click on Buy next to the item. Click on any View Order to view your order at any time or to complete your order. Online payment is by Debit/Credit Card only. To pay by cheque see the contact details. All prices inclusive of UK mainland postage and packaging. Currency Converter."
and also make it larger, and more simple in regards to the order part. It's confusing. Say all that in 1 sentence. People don't read much, mostly small characters like you have.

Commissions - You may want to replace by something more catchy like "Unique Custom Jewelry".

I also think you could work on the text of the site. You can embellish the content and use more keywords, more attractive sell pitches to win the heart of the women who will buy the jewelry.

That's all for now. I just brainstormed my personal judgement. I wish you great success in your endeavour and am happy to return your favor. You have helped me tremendously in redesigning my site, and I am very thankful. Now, I hope some of my comments will help you make yours better. I will come back to see how things are going.

Have a nice day,

Katia Bordy

INTERNATIONAL ROOTS COMPANY, INC.
RARE COLLECTIBLES ART GALLERY
Tel: 954-458-1557 - info@internationalrootscompany.com
http://www.internationalrootscompany.com