Dyed jigged camel bone is easy to work with, looks great on the knife. The inside shade can be seen from width side of the bone if need be, grind or abrade a little.
Using acrylics or any polymers for sealing/stabilizing the bone will make
material is no longer BIOEGRADABLE.
If you are particular do it by dipping it in a mix of linseed oil and solvent. Oil treatment may change the shade appearance .You can mix and match