Ashley Graham turned the big 3-0 on Monday, and judging from her birthday ensemble, the Sports Illustrated model has never looked better. For her big day, Ashley wore a custom lavender minidress by designer Leah Leona. The flattering dress, which hugged her curves in all the right places, featured a sweetheart neckline and ruffled sleeves. Keep reading to have a look at her sexy minidress and buy similar versions for yourself too.