ET has the details...

ET can exclusively confirm that IVANA TRUMP has wed her Italian actor beau, ROSSANO RUBICONDI, this afternoon in a lavish ceremony in Palm Beach, FL. Tune in to "Entertainment Tonight" as JANN CARL brings you more details from inside the wedding, starting Monday, April 14.

Only ET can report that 500 of Ivana and Rossano's friends and family from all around the world, including DONALD, flew in for the nuptials, which took place at the Trump family's famed Mar-a-Lago estate. Just a few of the posh items on tap for the ceremony and reception included a 24-piece orchestra from Paris, thousands of flowers -- costing a whopping $100,000 -- a DJ from Europe and a cake from Germany.

The elaborate cake weighs an impressive 600 pounds and serves 1,000 people. Eight people worked on the confection for two months -- and the pastry is decorated with $5,000 worth of edible gold.

The bride selected three dresses for the festivities, including a pale pink bridal gown by designer ZUHAIR MURAD beaded in Swarovsky crystals, and pink, diamond-encrusted MANOLO BLAHNIK shoes. She walked down the aisle to IL DIVO's version of "Unchained Melody." The groom emerged to the 'Rocky' theme song "Gonna Fly Now."

At the reception, Ivana and her new hubby will sit at an 8-foot-long table covered in 2,000 roses. The bride and groom will give a custom-made chocolate music box from Germany to each of their guests at the end of the evening.