Client needs to find this font, any help would be appreciated! Thanks.

Diamond Demi Bold  Vorgeschlagen von jerseygirl 


Friz Quadrata Bold  Vorgeschlagen von estabros 

Exact font was Quadrat Serial Bold, but this got me to the right family, thanks!

The Quadrat Serial can never ever be the exact one as it is a clone of the Friz Quadrata. Straight forward stolen design.