Jeff Bezos and Lauren Sanchez are sparing no expense for their lavish wedding in Venice, Italy, with an estimated cost of about $50,000 per guest, according to Brides.com. With nearly 200 attendees, the total bill could hit at least $10 million, though some sources say the final cost might reach $20 million or more.

Bezos, who’s reportedly worth around $230 billion (per Bloomberg) proposed with a 30-carat diamond ring, setting the tone for what's expected to be one of the biggest celebrity events of the year. Celebs like Orlando Bloom (without fiancée Katy Perry) and Tony Gonzalez (Lauren’s ex) are heading to Venice for the occasion.

TMZ reports that the couple and their guests are staying at the luxurious Aman Venice hotel, where rooms range from $2,000 to $10,000 a night and it’s fully booked for the event week.

While final plans are coming together, protesters in the area are forcing security teams to make last-minute adjustments to ensure everything runs smoothly. The multi-day celebration is already creating buzz, and organizers are working hard to make sure it goes off without a hitch.