Most high-end wine glasses won’t have designs on the bowl, as you don’t want to distract the view of the wine. You may come across a few exceptions like the Mikasa Cheer White Wine Glasses that have designs on the bowl.
However, you’ll often find finely decorated stems on some of the wine glasses.In the 18th century, glassmakers would draw spiral patterns on the stem. You’ll find these even now on antique and vintage glassware.