If you decide to not give her the Crest, she will ask you to reconsider. If you do reconsider, you only get one Dark Moon Grass, instead of the Ring of Devout Prayer. Deny her again and you will not be able to complete this sidequest for the remainder of the current play-through.
- In NG+ I wanted the dark moon grass (and the dialogue), since I already had the ring, so I answered NO the first time and YES when she asked me to reconsider. But she still gave me the Ring :(
- I'm now on the EU version, NG++. Answered NO, then YES, and still got the ring.
- Just did this again.. I can't get those damned grasses! NO first, YES to reconsider, still got the ring. CT this time was Neutral, but faith was 20.
- And once more: CT -2, Faith 13, SL 50. Still got the ring.
- Success! Another character, this time with 6 Faith, and I finally got that elusive grass \o/ So I'm guessing faith below 10 does it.
Another feature / bug:
- If you don't talk to her until you have the crest of vinland, and then talk to her once, then drop the crest onto the ground and talk to her again. You will get the ring, and can then pick the crest back up and use it on the next playthrough.
- Did this again, but I had already talked to her, so I just ran away when she started to ask for the Crest. I then dropped it on the ground and talked to her again, and she still gave me the gift.