To echo what the other reviews have said, the band is definitely too big, and the cups run small. I could afford to go a band size down, and three cups up. The bra is pretty, but it definitely doesn't fit.
I ordered this bra off of Totsy for $8.50, so I really don't feel to terribly bad that it doesn't fit. The bra is a beautiful light pink, with bow and jewel accenting on the gore. It is a very lightly padded, three part cup, plunge bra. The lace detailing on the bra is also a plus.
If you plan on ordering this bra, and you don't like your bands super tight, I suggest ordering a size up in the band. While I measure 38 around, I'm squishy, so the stretched band measuring 37.5 isn't the worst, but it does feel tight. This bra is also a cup size too small (the gore does not sit flat against my chest), and is not wide enough (my breast does not fill the bottom of the cup.)