Polycrystalline diamond consists of multiple diamond facets bonded together in a random orientation. This unique diamond structure has outstanding attributes, including exceptional hardness, abrasion resistance, high thermal conductivity, and chemical inertness. These properties make it remarkably effective in achieving high stock removal rates in various applications. The suspension comprises carefully selected diamond particles mixed with a water-based carrier solution. The control over particle size distribution, diamond concentration, and emulsion is stringent to maintain consistent effectiveness. These diamond suspensions are recommended for coarse polishing for hard materials such as ceramics, carbides, and hardened steels.