Hi - if you want to see cut pieces - with a genuine Cork attribution - then one of the most useful books is probably Phelps Warren's 'Irish Glass' - with the suggestion that it's the second, revised, expanded edition from 1981 that is by far the better volume.
Immediate thoughts are that if the glass is of a faintly peachy or yellow tint then this increases the chance of a Continental origin, rather than Cork, but there are exceptions to every rule, and seeing glass on the screen is no substitute for having the glass in the hand. But I'd agree with your caution in view of this less than lead-like colour.
To quote Warren (page 216) ""In both the Waterford and Cork sets of vessels illustrated the diamond motif is the most single conspicuous single cutting device."" Unfortunately, some of your pix lack contrast, and although we can see most of the cutting details, images with greater contrast are really helpful when discussing cut clear glass.
The world and his wife produced cutting with scalloped rims - no doubt much of it from Ireland - but it's not a feature that can be relied on as a type of cut decoration from which we might say the piece has to be from that part of the world.
I'd be wary of some of the ebay attributions - the lady in your link has given a date of c. 1830 for George III - this is an error, and that particular year was in fact the final year of the reign of George IV, who gave way to William IV. Also hobnails are a cutting style, I thought, that occurred much later.
What if any is the extent of wear - I doubt in view of the colour and thickness that this is lead glass, and so will probably not give a lead glass ring.
I wasn't aware that there were 'quite a few Georgian plates around' - I'd be suspicious of that sort of profusion- but again, to start buying into that period you will need to be savvy about what is or isn't Georgian - and that sort of experience comes only with studying the books, visiting museums and attending fairs - otherwise we make expensive mistakes.
If as you say, you have limited experience of Georgian glass, then it's easy to make a wrong assumption - you might try sending pix to a museum/V. & A. etc., and they might well be able to help.
Sorry to seem negative, but the genuine old stuff is getting thin on the ground - just be cautious. I would have thought that all pix - of clear cut glass, in the books - will be b. & w. anyway?

This is certainly the case with Phelps Warren (apart from one picture I think), and details and clarity of decoration are fine.