Okay... final versions for now, all in one post... also, I'm including a completed Gems list, so this will give you complete lists of Gems, Key Items, Accessories and Collectibles... I've changed the syntax of how things are designated in the Accessories to match how I did them in Collectibles by adding [] brackets around the number representing the Rarity level of each item. This should be 'done' until DLC likely adds to these lists in some way... I did not put rarities on gems or key items as that felt... unnecessary.
A note about Collectibles - there is a very large gap of [blank]s between some the large block of items and some a couple hundred numbers higher - including the Gogol items that someone asked about earlier - but I tested all those blank spots and a couple hundred afterward just to be sure (up to 3500). I only have it going up to 3400 in case of item expansion, and I maintain a spreadsheet with all of these lists so I can easily change stuff on my end in case there are problems or mistakes.
Edit: I'm not convinced these are entirely complete either... looking through, I think I'm missing some items but I don't know the ranges to test against... might need to track down someone's '100%' save and see if they've picked up items that can give me a hint at what I'm missing... so I'll tentatively say these are 'mostly' complete.
@turtle-insect - feel free to add these to your repo if you want to; I mostly did this so that people have as complete a list as possible for now.