The marble is not level

 Hi,

My husband (http://maplered.com) did our own small Marble (http://www.lightemprador.com) island (http://maplered.com) .  He has been doing tile jobs successfully but this did come out good.  The Marble (http://www.lightemprador.com) is not level.  Is there a way of leveling it now that it's already finished?  Will a wet diamond polisher at least remove the edges and (http://maplered.com) make it a little bit level?

 

Thanks.