Perception to rarity ratio

[Sleepyjo2]

The 300 perception = 300 rarity thing is just the base value, that's getting modified by the item you're gathering (similar to quality/progress increases changing based on craft difficulty). You'll get more rarity out of a 57 item than a 59 item. How it is specifically modified is beyond me but it seems to be a fairly heavy percentage decrease based on the level difference between you and the item in question.

[Ossom]

The 300 perception = 300 rarity thing is just the base value, that's getting modified by the item you're gathering (similar to quality/progress increases changing based on craft difficulty). You'll get more rarity out of a 57 item than a 59 item. How it is specifically modified is beyond me but it seems to be a fairly heavy percentage decrease based on the level difference between you and the item in question.

This is incorrect.

The Collectibility Rating is actually tiered. You'll Notice that once you have roughly 580 Perception, no matter how much more perception you get, your appraisals won't give you more collectibility. I've done testing all the way up to 694 (I'm thinking 701 is the next tier) and from 580-694 at least, no matter what node and no matter what item you will get 115 Collectibility from a methodical appraisal. (172 if you have Discerning Eye on).

[tomtensfarfar]

This is incorrect.

The Collectibility Rating is actually tiered. You'll Notice that once you have roughly 580 Perception, no matter how much more perception you get, your appraisals won't give you more collectibility. I've done testing all the way up to 694 (I'm thinking 701 is the next tier) and from 580-694 at least, no matter what node and no matter what item you will get 115 Collectibility from a methodical appraisal. (172 if you have Discerning Eye on).

Where did you get 701 from?

[Aeyis]

This is incorrect.

The Collectibility Rating is actually tiered.

No, it's correct. There is no tier, there is only a cap.