Extravagant celebrity weddings are common. However, the price tags on these most expensive high-profile weddings may be shocking. 5, George Clooney and Amal Alamuddin. George Clooney tied the knot with Amal Alamuddin in 2014. According to reports, their wedding celebrations came with a price tag of $4.6 million. 4, Beyoncé and Jay-Z. Reports suggest this couple went all out, with $8 million on wedding flowers alone, and Beyoncé's engagement ring being valued at $5 million. 3, Kim Kardashian and Kris Humphries. This wedding cost approximately $10 million. The marriage only lasted for 72 days before Kim filed for divorce. 2, Prince Harry and Meghan Markle. The royal family spent over $48 million on the lavish celebrations for the young couple, which were documented internationally. 1, Prince Charles and Princess Diana. This 1981 wedding cost around $110 million in today's currency. Despite this, the couple divorced in 1996 following reports of infidelity.