The 31-year-old model, who was there to support her best actor-winning husband Matthew McConaughey, says she did not want spotlight on the awards night as she was not a nominee, reported People Magazine.
"I don't necessarily feel comfortable showing up with the biggest dress of the night because I'm not one of the nominees," Alves said.
The model says she worked closey with the designer to nail down the gown's shape and its pale pink colour.
"We wanted to stick with the natural colors, but I had this one tone that would not leave my mind. We were supposed to do it a different color, but last minute I called and said, 'Do the dress in this color'. It was not leaving my mind." she said.
Alves' husband won the best actor award for his performance in the 'Dallas Buyers Club'.