So here's the version of it that I just acquired.
I have to say it certainly ISN'T light, in fact it's so heavy that I would have guessed Sklo even in the dark! LOL! (They never seemed to choose 'delicate' over 'robust' there, did they?! ;-)
I can't see any notable difference from the rest of my verified items. (weight, colour, pattern, relief etc. all seems right!)
In the third picture is a small plate ('bonbon plate'?) in light green. Although this has the Argos pattern, it IS noticably (surprisingly) thinner though still not 'delicate'.
I searched for any marks, just to be doubly sure, but find nothing!