Steve Granitz/Getty Images; Dave M. Benett/Getty Images
Biel rocked a full-on frilly Oscar de la Renta one-shoulder gown at the premiere of Valentine's Day in L.A. back in February, while, Alba opted for an elegant and asymmetrical Valentino number at the designer's Haute Couture afterparty in France earlier this month.
Both brunette babes looked ravishing in ruffles, but can you guess which star spent almost $7,500 for her look?
Find out who in mystyle's Who Broke the Bank? shopping game!