Can you show us a picture with the lids off? The box's from what I can see look real, MAC started making crimps in them in 2007. A closer picture of your ladyship would also help. There are other small things on the box, jar and the insde plastic lid that can help if you could take close up pictures of those.
A few pigment sellers are now putting fake pigment into real jars . With those the only way to tell is by a color comparison which is why I keep 1 sample of every color I sell even if I dont wear it. I get 99% of mine direct from MAC but the ones they dont have anymore it comes in handy to have.