1. The Diamond Wedding Gown – $12 million

In 2006, the collaboration of two designers Renee Strauss and master jeweler Martin Katz turned into a great creation that was destined to make it to the top of the list of the most expensive gowns of all time. Featuring 150 carats and extravagance quality of luxurious fabric make it one of the most luxurious dresses that has ever been made.