Like Kiki Kannibal

Answer:
You could begin somewhere like http://etsy.com . It's simple and simple..kinda of like ebay, except not bidding.
Answer:
The fastest, easiest and free way is using blogger blogs to create blogshop. You can also use livejournal or wordpress and many other free blogs on the internet.

If you’ve the budget, you can get a low cost hosting and a domain for your own site. Set up a wordpress blog shop like mine Adorable Fashion Jewelry Store, http://fashionjewelrytv.com or simply find a free shopping cart software like oscommerce, zencart, cubecart and many more to build your own jewelry site.