I just found these Chloe buckle boots online at Neiman Marcus  and I absolutely love them!
They are $1,155, but you do get a free boot bag when you purchase any pair of boots at Neiman Marcus now through August 24th. Click here  to buy.
Lots more less-expensive boots with buckles, including a lookalike so close, it's pretty hard to tell the difference, so
Franco Sarto Militare - $159.95, Available here . Can you believe how much these look like the Chloe's?
and these ones are pretty close too...
REPORT Victory - $129.95, Available here 
And two more that aren't as close, but still really cute...
BCBGirls Macony - $178.95, Available here 
Antik Denim Wake - $450, Available here