I created a Google Sheet that lists all the rings and how to get them. You can go to file and copy the sheet so you can keep track of what rings you need.https://docs.google.com/spreadsheets/d/18qUft3HNONdaW7nQJJ5W...
This also includes the other collection achievements.
At the bottom of the page you can select the different pages.
Using the paint can you can black out the box for acquired which makes it much easier to see what you have.
If you were using my checklist and everything is checked off but you don't have the achievement it is because i forgot the Lloyd's Shield Ring. I fixed it and i'm very sorry for missing it.