By Meghan Blalock There are few things more gawk-worthy than a celebrity engagement ring. From Blake Lively’s roughly 12-carat oval-cut bauble valued at approximately $2 million from hubby Ryan Reynolds to Beyoncé’s 20-carat stunner from Jay Z, valued at a cool $5 million, these diamonds are definitely a girl’s most expensive friend. 1. Victoria Beckham Beckham might just be the reigning queen of celebrity engagement rings. Recent reports suggest she has as many as 13 different rings husband David Beckham has bestowed upon her throughout their 15-year marriage.