This is essentially the basic celestial package for GURPS In Nomine, translated into 4th Edition.
Basic Celestial 566 pt
This is the basic package for both angels and demons: it does not include Choir or Band resonances, nor does it take into account specific conditions (such as being Outcast or Renegade). Items in italics represent GURPS In Nomine-specific advantages. While technically the base form for an angel or demon would be his or her celestial form, most adventures will take place on the corporeal plane. The base cost of Essence Control is , plus  for every level in it (including the first). The language known will be a human one; a celestial's native language will be either Angelic or Helltongue. Non-Reciprocal Damage applies to the Alternate Form: damage taken while in celestial form will not affect the regular form, or vice versa. Power Investiture must be divided between Corporeal, Ethereal, and Celestial, with at least one level in each for Earth-bound celestials. Finally, Disturbs Symphony indicates that a celestial causing damage to persons or things, spending Essence, or performing Songs will be detectable via Detect Symphonic Disturbance.
Attribute Modifiers ST+4 ; DX+4 ; IQ+4 ; HT+4 
Secondary Characteristic Modifiers: None
Advantages: Alternate Form: Celestial ; Detect Symphonic Disturbance (Common) ; Doesn't Eat/Drink ; Doesn't Sleep ; Essence Control 9 ; Immunity (Disease) ; Language (varies) ; Non-Reciprocal Damage ; Power Investiture 9 ; Regeneration (Slow) ; Temperature Tolerance 5 (Cold) ; Temperature Tolerance 5 (Hot) ; Unaging (Can still appear to age, +0% feature) ; Very Fit (Doesn't Fatigue Variant) 
Celestial Form: Advantages and modifiers as above, plus Doesn't Breathe ; Insubstantial (Can carry up to No Encumbrance +10%; Costs 2 Essence to activate, -20%; Requires Will roll to activate, -10%; Causes Disturbance, -30%; total -50%) ; Invisible to Machines .
Disadvantages: Disturbs Symphony [-15]; Humble or Proud [-1]; Secret (Celestial) [-5]; Sterile