[jQuery] Is there a way to get distinct elements based on criteria

[Bazztrap]

For instance

<div class=1"> <div>
<div class=2"> <div><div class=2"> <div>
<div class=3"> <div>
<div class=3"> <div>

 $(div).filter("some condition")  will return me all unique divs
result set (  <div class=1"> <div>
<div class=2"> <div><div class=3"> <div>)

much appreciated