5. Kate Middleton
The new Catharine, Duchess of Cambrige’s new royal title is almost as regal as her engagement ring. Thanks to Prince William, girlfriends across the globe will be hinting to their boyfriends to hunt down a replica before getting on one knee. Many jewelers are making their best attempt to copy the pedigreed sapphire and diamond ring once worn by Princess Diana, so that every girl can feel like a princess for a reasonable price.