In Wrath of the Lich King it is item level 258, requires level 80, sells to vendors for 12g 52s 28c and is named Judgement Crown. In MoP Classic it is item level 245, requires level 80, sells to vendors for 12g 52s 28c and is named Judgement Crown.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Judgment Crown Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Judgment Crown suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Judgment Crown is part of the transmog set Judgment Armor (Paladin only). The other 13 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Judgment Crown Fits
Other Items Named Judgment Crown
1 other item in the current build is also called Judgment Crown. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Blizzard numbers items as they are created, so the named items next to ID 49476 (49471 to 49481) were usually added in the same batch as Judgment Crown: the same quest line, zone, vendor or reward set.