This leather and diamond bracelet designed by InStyle contributor Rachel Bilson not only looks good, it does good too! Last December, Bilson traveled to Botswana and South Africa to report on the improvements diamond mining has made in the lives of the people there. Wanting to do what she could to help, Bilson created this bracelet, sold exclusively through InStyle.com. It retails for $100, with $20 from each sale going to the non-profit Diamond Empowerment Fund (DEF). Money raised will help purchase additional student housing for the CIDA City Campus in Johannesburg, Africa's first practically free university.