The most expensive wedding dress ever made is the the Diamond Wedding Gown worth $12 million dollars. The dress was created by designer Renee Strauss and master jeweler Martin Katz. Made in 2006, this dress features 150 carats of diamonds.
BONUS FACT: Las Vegas is the top wedding destination in the US with over 100,000 weddings a year.
Dress image – http://www.diamondring.com/journal/715-diamond-wedding-dress/