All of Lauren Sánchez's wedding week outfits

The wedding of the year is underway.

Lauren Sánchez and Jeff Bezos are set to tie the knot in Venice this weekend with a crowd of A-list guests including the Kardashian-Jenner family, Ivanka Trump and Jared Kushner, Oprah Winfrey, Tom Brady, Leonardo DiCaprio and more.

And from the moment she and the Amazon founder touched down in Italy, the bride-to-be’s been treating us to a parade of high-fashion party looks.

Page Six Style exclusively reported that the Bezos, 61, gifted Sánchez a diamond necklace valued at between $3 million and $5 million, which she’s expected to wear during her wedding weekend (along with plenty other gems, we’d guess).

Below, see everything Sánchez, 55, has worn so far in Venice.

Alaïa

COBRA TEAM / BACKGRID

The couple arrived via helicopter in style on Wednesday, with Bezos in a blue polo and crisp white pants.

Sánchez, meanwhile, looked Old Hollywood glam in a high-neck Alaïa LBD styled with strappy heels, oversized sunglasses and giant diamond stud earrings.

Vintage Alexander McQueen

REUTERS

Sánchez and Bezos enjoyed a dinner date together on their first night in Italy, with the bride-to-be choosing a vintage Alexander McQueen number.

Crafted from navy silk satin, the bias-cut design features stripes embellished with gleaming buttons and hails from McQueen’s spring 2003 collection.

Bezos sported a black suit, cream T-shirt and sunglasses.

Schiaparelli Haute Couture

James Breeden for NY Post

Finally ready to party with her guests, Sánchez slipped into a dazzling corseted creation to kick off the wedding festivities Thursday.

With its intricate floral embroidery and sculptural strapless silhouette, the Schiaparelli Haute Couture gown was truly fit for a multibillionaire’s bride.

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