Diamonds are Rockfords best friend. Well, at least in the videogame-classic Boulderdash!
Another 8-Bit Pixel Figure of a dusty but great game from First Star Software.
Rockford, Firefly and certainly a diamond are included ;)
The Diamond looks best when printed with transparent Filament (obvioulsly). I´ve added two different diamonds - choose which you like best
Maybe you want to glue them on a baseplate, so I´ve made one: