If you indicate you are looking for a karat or more, they are not going to show you less than a karat. If you want a significant discount, ask to see stones just under a karat. If buying earrings, ask to see stones just under a half karat. Maybe your lady friend will think you are being cheap. Maybe you are? Maybe I am.
Dick, they sell a shitload of stones under a karat. (How do you think non-KSU grads ever marry?)
Gonna win 'em all!