What is Diamond Sharpening?
Diamond sharpening is done using diamond paste in much the same way as
standard sharpening. The major difference is that the diamond impregnated
discs are softer so there is less noise during the sharpening process.
Why Would You Want it?
When Do You Want It?
When You Don't Want It.
Do you mostly do blunt cuts? Do you do dry cutting? Do you do a lot of point
cutting? Do you do a lot of cutting on very course hair?

These are all cutting services where you don't want or need the hair to be able
to slip during the cut so if the blades are "too smooth", especially on the blunt
or dry cuts, you can't get nice clean lines.

During point cutting if the hair slides out then you have to go back again and
again causing lengthy service times.  

For this kind of cutting talk to me about serration and specialty sharpening for
multi purpose convex or beveled edge shears.
Diamond sharpening is best used on convex shears that are made of very hard
metals such as cobalt, cadmium, titanium, nickel alloys, and very high quality
hardened steel.

Doing the sharpening with diamonds on a soft disc results in a much smoother
sharper edge while usually removing less metal from the blades. Result, the
shears stay sharp longer and simply last longer.
Do you do a lot of slide, slither, or scoop cutting? Then you will love the razor
sharp edge that diamond sharpening can put on your shears.