Want Sienna Miller's style? Now, you can have a piece of it for just $30. The actress and Twenty8Twelve designer curated a piece of jewelry from Kate Bosworth's social shopping website, JewelMint, according to People. The site features pieces by Kate and her stylist, Cher Coulter. (Who knew Kate was a jewelry designer?) The best part is, if you buy the Sienna bracelet, then half the proceeds will go to International Medical Corps. But hurry -- it's only available until Aug. 14.