Meanings of real stunner in English

The necklace is the real stunner, though, and earned me plenty of compliments.

Despite having a title than almost nobody can remember, Martha Marcy May Marlene is a real stunner.

I can't understand anything after the fumes of the school, unless I do a bit of visiting first; and that pheasant is a real stunner.

Gosh, there I would have been a real STUNNER.

There are some real stunners on the way, from the gorgeous new C-Class coupe to an exciting new CLS.

Everyone else is interesting (Burrows especially shines as a steely vet struggling with getting older) but not dynamic enough to be real stunners.