How are industrial diamonds made?

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Natural diamonds have long been used for industrial grinding. After they are extracted from the ground, they are transported to factories where they are processed, separating gem-quality diamonds from industrial diamonds through a system that includes X-ray machines and hand-sorting. These smaller, lower quality stones, also known as "round stones," are used in equipment such as grinding wheels, drills and dressing tools.

Synthetic industrial diamonds for grinding wheels can be manufactured in one of two ways:

High Pressure High Temperature (HPHT)

Chemical Vapor Deposition (CVD)

In the HPHT method, the material from which the diamonds are manufactured is subjected to high pressure and high temperature to allow the diamonds to form.

In the CVD method, the material used to make the diamonds is placed in a vacuum chamber and carbon gas is added to form the diamonds.

Industrial diamonds, whether from natural or synthetic sources, are crushed, ground, cut, shaped and polished into customizable sizes and shapes. Next, the particles are bonded together to form grinding wheels or cutting tools, often using metal, resin, ceramic materials, or single-layer plating onto a metal substrate.