NAT diamond has a monocrystalline particle structure, created by high pressures and temperatures underground. Like synthetic monocrystalline diamond, it features major cleavage planes, which are oriented parallel to the optical axis. Natural diamond particles break relatively easy parallel to the cleavage planes.

NAT diamond is precision graded and has a blocky, sharp-edged particle shape. It is free of catalyst metals, which makes it the preferred choice for plated tools and other applications requiring maximum cleanliness. Natural diamond is also used in lapping and polishing processes with special requirements.

Tools and surface applications:
- plated diamond tools
- grinding wheels
- dental tools
- pellets

Lapping and polishing of:
- wire drawing dies
- special applications