Diamond cup wheels give stone fabricators a fast, controlled way to grind, shape, and smooth granite, marble, quartzite, and engineered stone. Shop production-ready wheels for aggressive material removal, radius work, and fine grinding, including metal-bond and resin options for different stages of the job.

Choose the right diamond cup wheel by material, grit, wheel shape, and grinder setup. Basic Diamond carries reliable options built to remove material cleanly and keep your work moving.

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  • Pinnacle Radius Diamond Cup Wheel

    Pinnacle Radius Diamond Cup Wheel

    Diamond Cup Wheels for Stone & Granite | Basic Diamond

    $69.99
    Sale price  $69.99 Regular price 
  • Basic Diamond Resin Cup Wheel

    Basic Diamond Resin Cup Wheel

    Diamond Cup Wheels for Stone & Granite | Basic Diamond

    $95.99
    Sale price  $95.99 Regular price 
  • Pinnacle Turbo Diamond Grinding Cup Wheel

    Pinnacle Turbo Diamond Grinding Cup Wheel

    Diamond Cup Wheels for Stone & Granite | Basic Diamond

    $89.99
    Sale price  $89.99 Regular price 

Frequently Asked Questions

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What is a diamond cup wheel used for?

A diamond cup wheel is used to grind, shape, and smooth stone. Fabricators commonly use one to remove stock, flatten high spots, refine edges, and prepare granite, marble, quartzite, or engineered stone for the next finishing step.

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Which grit diamond cup wheel should I choose?

tart with a coarse grit when you need faster material removal, then move to a finer grit to reduce scratches before polishing. The best starting point depends on the stone, the amount of material being removed, and the finish you need.

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What is the difference between a metal-bond and resin cup wheel?

Metal-bond cup wheels are generally used for faster, more aggressive grinding. Resin cup wheels produce a finer scratch pattern and are useful when transitioning from grinding to polishing.

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Can I use a diamond cup wheel on quartzite?

Yes, if the wheel is rated for the material and your grinder setup. Quartzite is hard and abrasive, so use controlled pressure, follow the wheel manufacturer’s speed guidance, and avoid forcing the cut.