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2.
a group of annoying, obnoxious, bitchy sluts that go to chichester and think everyone loves them but really nobody likes them.
"WE'RE THE DIAMOND GIRLS!"
"Is that a joke?"
by th@ m@n September 23, 2009
 
1.
The girl a guy wants to marry/ propose marriage to.
"You're my diamond girl, you're the one i put the rock on."
by Bergy Berg March 11, 2008