Here is dress inspired by the Disney Princess Tiara. I don't have a daughter - I got this at an open box item store in a package of something else I wanted. It has a tag of size 120, which a quick internet search told me was sized for a 7/8 year old girl. I'll include all the measurements here.
36 inches from the shoulder strap to the bottom of the dress
12 inches from one side of the dress to the other - I measured this where the top meets long part of the dress - see pictures
13 inches from armpit to armpit
41 inches from side to side when the bottom of the dress is pulled out
It has FIVE layers of dress counting the see thru lily pads.
Great condition - never worn.
Email any questions.