size difference in the Tiffany tag bracelet

[fashion16]

I am interested in the Tiffany "Notes" bracelets but I am back in my home city now where we don't have a Tiffany & Co so I have to buy it on the internet. They have a small tag bracelet which is $175 and a medium which is $200. Does anyone know what the size difference is and what looks better on? I have petite wrists BTW.
Thanks!

 

[fashion16]

nevermind. Called Tiffany & co. The small is the size of a nickel. The medium is the size of a quarter. Medium it is!