Inner dimension is 2.52". This bracelet is AMAAAAZING!! It is completely chock full of the complete spectrum of Kevin's anemone milli, and then the entire piece is faceted as well! It is absolutely stunning in hand, the pics don't remotely do this pieces justice. Definitely one of the nicest bracelets I've ever seen from Kevin. I'm no expert in the sizing of these bracelets, but I would judge this one to be in the large range. It's in brand new condition, never worn. Signed with sig chip 'KO 2005'.