Brides Executive Director Lisa Gooder told E! News Williams wore a sheer, sparkly cape with the gown. She also said the tennis champ wore a classic veil down the aisle and kept her makeup "dewy." As for her hair, Gooder said the bride donned a "simple" and "classic" style.
But Williams didn't wear just one dress on her special day. According to Gooder, Williams changed into a "really fun party dress" by Versace for the reception. The dress contained feathers and beading. However, two dresses still weren't enough for the tennis pro. She changed into a third Versace dress later in the evening.
As for the bling, Gooder said Williams wore $3.5 million-worth of jewelry for her wedding, including some "really amazing earrings."
In terms of the bridal party, Gooder said the bridesmaids all wore convertible dresses by Galia Lahav in different shades of cream, white and off-white.
Williams was apparently very hands on with choosing everyone's attire and worked with the designers to pick everything.
Watch the video to learn more about the tennis pro's wedding look.