When applied to a mount:
Epic:
Item Level 100
Insignia Slot: +150 Critical Strike
Insignia Slot: +150 Deflection
+80 Combined Rating
Legendary:
Item Level 200
Insignia Slot: +300 Critical Strike
Insignia Slot: +300 Deflection
+160 Combined Rating
Mythic:
Item Level 500
Insignia Slot: +750 Critical Strike
Insignia Slot: +750 Deflection
+400 Combined Rating