ModCloth's beautiful 'Dainty and Demure Top' retailed for $44.99, but unfortunately it is now sold out.
Keiko Lynn did such a pretty look with this top on her blog.
I purchased the Forever 21 'Blush Sheer Lace Top' that is a really close look-a-like to the ModCloth version for $24.80 a few weeks ago at my local f21 store. It is also now sold out online, but may still be available at your local f21 store!
I love that this style top is so versatile, it looks just as good worn casually with my fav jeans as it does worn over a dress.
The 'Olivia Blouse' is a similar style top that is currently available online from Alloy for $29.90, yay!
Here are two clickable looks I put together using the 'Alloy Olivia Blouse':

