"Katie wanted a simple, elegant dress," Giorgio Armani tells PEOPLE

From the moment they arrived in Rome to the moment they left for their honeymoon, Giorgio Armani was the man behind everything that Tom Cruise and Katie Holmes wore throughout the week.

And when it came to designing Katie’s bridal gown, Armani tells PEOPLE exclusively that he wanted the dress to match Holmes’s personality.

“Katie wanted a simple, elegant dress that was rich in material with a slim silhouette,” he says. “I couldn’t have been more in agreement. I wanted to make it modern but at the same time, complement the sweetness and energy she conveys.”

The result? An off-the-shoulder Armani gown with an ivory silk train adorned in Valenciennes lace and Swarovski beaded crystal embroidery. She accessorized her gown with an ivory tulle floor-length veil and ivory silk shoes.

As for Cruise, Armani outfitted him with a navy blue tuxedo from the Giorgio Armani Hand Made to Measure collection. The jacket label read, “Giorgio Armani for Tom Cruise.”

Armani also dressed the rest of Cruise & Holmes’s family. Here are all the details:

• Holmes’s mom, Kathleen, put on a Giorgio Armani Priv evening dress in rose silk; Her neckline was trimmed with tulle and black embroidery.

• Holmes’s sister and bridesmaid, Nancy Holmes, wore a black charmeuse, silk-layered evening dress, with an empire waist and floor-length skirt. Her off-the-shoulder neckline was made of black lace.

• Cruise’s mother Mary Lee Cruise wore a silver silk Giorgio Armani Priv evening dress with rose appliqu detail at the waist and shoulders.

• Cruise’s sister Cass Cruise wore a deep blue velvet suit with a fitted jacket featuring black taffeta plisse details at the waist.

Cruise’s kids, Connor and Isabella, also wore Armani during the week. In addition to her satin pale pink dress worn earlier in the week, Isabella wore a sleeveless, ice-colored dress for the rehearsal dinner. Connor, meanwhile, matched his dad, dressing in a navy blue single-breasted suit.

Finally, there’s Suri. For the wedding, Tom & Katie’s 7-month-old daughter wore various layers of organza and chiffon, which, according to Armani, was “inspired by her mother’s bridal grown.”