Here's a close-up...

Perfect shade for that lamp (which is beautiful!)

or something like this?

Article linked to below might help. Click on it to enlarge.

Here is a link that might be useful:

Thanks to both of you. The article was helpful and I do like the shape of those lampshades!

Pretty lamp. Best way to choose a shade is take the lamp to a lamp shade store and try them on....there's no way to know without actually seeing it as so much matters...the height of the harp, the shape of the shade the height of the shade the width of the shade the color of the shade, etc. When you see it on the lamp, you'll know if it's right or not.