4. Beyoncé Knowles
Beyoncé is never afraid to go over the top to get what she wants, and neither is her famous hubby Jay-Z apparently.
To celebrate the couple’s pending nuptials, the rapper-producer gifted Bey with an 18-carat diamond in 2007.
Costing over 5 million dollars, this ring proved that Jay-Z loves her, although he’s rumored to have a couple of children outside their marriage.