Blushers and Dupes.

Very similar are Bourjois Lilas D'Or 33 and Nars Orgasm (left to right).
I'd even go so far as to say i think that i prefer Bourjois *gasp*

Nars Orgasm blush in the background together with Nars Multiple in Maui and Orgasm (left right).

Nar's Maui Multiple is very much the same tonal range as Orgasm. I like it more as it has no or little shimmer and it so much more pigmented on my skin tone (MAC NC20/25).

Like a lot of people i went out and bought Nars Orgasm because it was raved about and seemed to be everyone's must have makeup item. I was a bit miffed as when i applied it didn't really show up on my skin apart from leaving a highlighter shimmer behind. 

I still use it on days i don't have time or can't be bothered to spend ages blending or making sure i don't have an 80's stripe of blusher across my cheeks. But other than that i think it's meh!

BUT i shall be trying out Gossmakeupartist 's tip on how to attempt a glowing look with it. 

Bobbi Brown Pallet-Blush shades at the bottom of the pallet are (left to right) Pink Rose & Pale Pink.
Benefit Coralista,
Famous by Sue Moxley Shimmer brick in Rose Glow shade 2.
Accessorise Merged Baked Blusher in 5 Sensation.
Benefit Georgia
Bourjois Lilas D'Or 33
Nars Orgasm.

The few MAC blushes that i own are
Top left to right-
Sunbasque Sheertone Shimmer,
Love Joy Mineralize,
Flirt & Tease Sheertone Shimmer,
Dollymix Sheertone Shimmer.