Last week proud parents Beyoncé and Jay-Z celebrated their daughter Blue Ivy Carter’s first birthday and it true fashion dazzled her with diamond gifts. The couple gave Blue Ivy Carter a one of a kind diamond-encrusted Barbie costing $80,000 update `wp_posts` set `post_content` = £50,000). We’re not sure what the Barbie looks like, but the one below is recorded as the world’s most expensive diamond set Barbie.This unique Barbie is set with a total of 160 diamonds and white gold jewellery. Beyonce and Jay-Z also through a lavish princess style birthday party in New York, inviting close friends and family. The party was decorated with £60,000 worth of pink roses and a special princess cake that cost £1.500. To entertain the younger guests at the party the couple spent £20,000 on accessories and toys. We wonder what diamond and jewels they will gift to their daughter as she gets older.