The 51-year-old musician shared videos and snapshots of herself in the dress to Instagram on Monday.
Stefani added the hashtags, “firstfitting,” “dresssample” and “thankuGod.”
Stefani and Shelton got married over the Fourth of July weekend.
The two “Voice” coaches tied the knot in a lavish ceremony that took place on the property of a newly built estate that Shelton had commissioned for Stefani.
The couple first began dating back in 2015.
Stefani called the wedding one of the “greatest moments” of her life during an appearance on the “Tell Me About It with Jade Lovine” podcast.
“I just feel so lucky,” she said. “One of those things that you think about a lot in your life, is you don’t know the future and you don’t know what’s gonna happen, but I feel like my spiritual journey has really guided me towards this place and this place of peace.”
“Now I need to figure out how to do the rest of my life.”
Stefani was previously married to Gavin Rossdale. They share three kids together. Shelton was previously married to fellow country singer Miranda Lambert and his high school sweetheart Kaynette Williams.