It is depends which shop and which frame you choices, But i see that most cat eye glasses frames and nerd glasses frames at Firmoo.com are about 20-30 dollars. And the fashion eyeglasses at Firmoo.com are start at 8$. They also provide titanium glasses frames, memory plastic and memory metal frames which are very light weight. Besides, eyebuydirect, 39dollarglasses, and glassesusa.com are also good place to buy glasses frames.
The cost of stylish glasses depends on several factors, like the frame style, the frame material you choose and the place you get. The fashion eye glasses frames in some cheap online optical stores may cost about $20-$100. If you want to get them from name brands, they will cost you more, from $200 to $500. Stylish eyeglasses frames, like cat eye glasses frame or big nerd glasses frame are very popular and you can get them with lower price from zennioptical, framesdirect. If you want to get light weight frames, titanium glasses frames are the best choice for you, but they are a little expensive for at least over $100.