Originally Posted by MARG
I am almost persuaded that they are two totally different dresses. The neckline on the original was designed to carry the ruby necklace and this one wouldn't fit a choker let alone a piece of serious jewellery.
Mary doesn't seem to be a person who would have 2 dresses that are the same with slight changes made. Same color, same fabric and same cut with just a belt added and different neckline therefore I personally think its just changed from neckline to waist. The aqua dress worn in Australia recently was the same dress worn to Victoria's wedding earlier which had a completely different top part.
About the fake hair discussion, who cares. Many people have extensions or fake pieces put in when they go for certain hair dos. IMO, I don't think she had any in, Mary has thick hair. When one puts their hair up, the bottom back part is usually a slight shade different.