Quote from Nereze >>

Would Brand of Castigation from Blood Hunter still work even with this?

 I would say yes BoC would work, as it is hemocraft magic, not divination magic.

Quote from Tehlolz1337 >>

How does this work with brand of castigation

 I would say it does not prevent BoC, as that is hemocraft magic and the bloodhunter can then just know where you are.

Strange that the item art has the Abjuration icon (from the spell schools) and a closed eye - Illusion icon. Seems like it should be the Divination icon instead?

No Sending for you!

You can get a Message though, so it's got that going for it, which is nice.

If I am using this item, people can't scry on me, but what if they are trying to scry on a particular item I am wearing? Such as a cloak of protection? How would that work? 

What's the difference between this and a Ring of Mind Shielding?

Reading the description it seems as if the ring is better than the amulet.

Quote from Quirks >>

Likely should extend that comment to more than just villains. Rulers, diplomats, spies, religious leaders, thieves guild leadership, business leaders, all would have a reason to fork over the gold for this sort of item. It does bring up questions of if only the user not visible to divination magic or does it create a small imperceptible zone around a user. If two characters are having a conversation, one has an amulet and the other does not, can half the conversation still be heard or seen. The answer should be a DM decision of course. An amulet that creates a 20 ft. sphere of no detection would be more rare and powerful compared to an amulet that only masks the wearer, so there is room for scaling as needed.

 I would say that it's like hearing one side of a phone call

The item probably has that as it is using abjuration magic to protect the user from divination spells

Just noticed that the symbols on this amulet are a combination of the symbols of Abjuration and Illusion magic, as seen in the icons for spells of those respective schools. It looks like the eye for Illusion is closed. Pretty neat inclusion