If you're a fan of Steampunk art and jewelry, or you just like unique, beautiful jewelry then check out Catherinette Rings. This shop has been a favorite of mine on Etsy for a while now, and if you haven't checked them out yet, I suggest you do.
They sell gorgeous, handmade jewelry- rings, bracelets, necklaces, earrings, tie tacks..oh, and they have gift certificates! Not only are their items great, but so is their shipping cost- they offer free shipping EVERYWHERE! I highly suggest this shop.