Gm
       Gb
       Bb
       Eb
       Dm
       Cm
       F
       Gbaug
       C
       Edim
       D7

In my opinion these are the correct chord passages to this classic tune.
I play Gbaug with 1st finger barring 7th fr. into Bb at 6th fret then the
C with E as its root(A string 7th fr)and the 1st finger barred at 5th fr.
This seems to work really nicely, see what you think anyway.  

[Verse 1]
Gm                                    Gb                        Bb
    Remember when you were young,         you shone like the sun,
Eb    Dm     Cm     Bb    F
Shine on you craaaaaazy diamond,
Gm                                    Gb                          Bb
Now theres a look in your eye,           like black holes in the sky,
Eb   Dm     Cm     Bb    F   
Shine on you craaaaaazy diamond,
         Gm                              Gbaug
You were caught in the crossfire,     of childhood and stardom,
Bb                   C9           Eb                      Edim
Blown on the steeeel breeze,     come on you target, for far away laughter,
Bb                       Dm         D7         Gm
Come on you stranger you legend you martyr and shine !

[Guitar solo Chords]
Gm    Gb     Bb    Eb Dm Cm Bb F

[Verse 2]
    Gm                                   Gb                     Bb
You reached for the secret too soon,         you cried for the moon,
Eb    Dm     Cm     Bb    F
Shine on you craaaaaazy diamond,
Gm                                 Gb                     Bb
Threatened by shadows at night,      when exposed in the light,
Eb    Dm     Cm     Bb    F     
Shine on you craaaaaazy diamond,
         Gm                                   Gbaug        
Well you wore out your welcome,          with random precision,
Bb                   C9            Eb                        Edim
Blown on the steeeel breeze,      come on you raver,    you seer of visions,
Bb                      Dm        D7           Gm
Come on you painter you piper you prisoner and shine !