Cestus: "While wearing a cestus, you are considered armed and your unarmed attacks deal normal damage. If you are proficient with a cestus, your unarmed strikes may deal bludgeoning or piercing damage. Monks are proficient with the cestus."
Emei Piercer: "The ring prevents the wielder from being disarmed and turns unarmed strikes into piercing attacks."
Here's my first question. Does this mean when I use these weapons, they are considered unarmed strikes for the purposes of class abilities, feats, so on and so forth?
If yes, I have a second question. A normal unarmed attack is 1d3, while a cestus hit is 1d4. Does this mean wearing a cestus increases a monk's unarmed damage by one die step?
Here's my first question. Does this mean when I use these weapons, they are considered unarmed strikes for the purposes of class abilities, feats, so on and so forth?
If yes, I have a second question. A normal unarmed attack is 1d3, while a cestus hit is 1d4. Does this mean wearing a cestus increases a monk's unarmed damage by one die step?
Sadly, the intent is for all of those types of weapons to be simply light weapons, and have no relation to unarmed strikes at all. This means a level 20 monk using a cestus will still only deal 1d4 damage with it, instead of whatever his unarmed strike die is.