This is some of the grinding/polishing stuff I use.
Diamond 10" sharpening stones 150, 400 grit and whetstones 1500, 3000 grit.
For kitchen knives, wood cutting tools, scalpel blades and flat metal surfaces.
Literally razor sharp when correctly done.
Round grinding/polishing diamond discs 150 mm, 180, 600, 1500 grit.
Lathe tools, steel and carbide.
Cerium oxide on felt discs for polishing glass (like windshields).
3M Perfect-It III from coarse to ultrafine for paint, plexi and softer materials.
Rotating soft discs of various hardness or on thin cloth on a metal base.
"Embedding" is not something that is connected with any of these methods.
Rather the contrary if you use diamond powder pressed into a tin disc for polishing
materials much harder than the tin base.