"If I knew they were going to wear it I would have tried a bit harder because I just took it off the rack right where I was standing."
She was told her clothes would not be worn as the royal wardrobe was organised well ahead of the tour.
"But what I heard was when she went back to her room the gifts were all there and within an hour she changed her mind and wore that dress.
And while she still berates herself for not giving the selection much thought she said the Duchess looked beautiful in the brightly-coloured, hand-printed floral dress.
"The more I look at the picture the more I think it was just perfect for her."
Tavioni said the dress was a staple in the locally manufactured range but its popularity had since soared.
It was now better known as the 'Kate' dress, she said.
The royal couple's choice to wear locally-made clothing was a huge compliment to the region.
"When I saw them wearing it I felt a bit humbled that they were wearing something that was made in the Pacific and that it was good enough for them to wear."