"We were so excited to offer Jill a package that we regularly provide to brides, called a 'Princess Treatment,' said Christy Stutzman, co-owner of Ava Laurenne Bride. "It's a very girly, special and sweet time every time we do it."
Christy and her sister, Wendy Rivera, also a co-owner, had to keep the details of Jill's dress under wraps until the wedding. "The secret was safe with us!" said Wendy.
The dress was an Allure Romance gown with Swarovski crystals and a chapel length train. Rivera and seamstress Moni Reeise added lace from a veil to create straps and to fit Jill's vision of a dress that was modest but elegant.
"She wanted something modest, but not predictable," said Wendy. "It fits like a glove. It is perfection."
In addition to altering Jill's dress, Rivera also performed the song "The Prayer" at Derick and Jill's wedding, accompanied by her husband Gabe.
See footage of Jill's experience at Ava Laurenne Bride on the next season of 19 Kids and Counting.
In the following YouTube video, Michelle Duggar discusses Jill's bridal gown with Wendy. Keep an eye out for Josie, who is featured in the video wearing her own princess dress for her role as flower girl.
"She has been begging to put it on since she got it," Michelle Duggar told PEOPLE Magazine.