How to Cut Quartz Countertop Edges

Cutting and finishing the edges of quartz countertops requires careful planning and the right tools to achieve a professional result. With some basic knowledge and the proper techniques, you can create beautiful countertops to customize your kitchen or bathroom.

Selecting the Edge Profile

The first step is deciding on the type of edge you want for your quartz countertop. Here are some of the most popular options:

Straight Edge

A simple straight edge gives a clean, modern look. It accentuates the linear patterns in quartz. Easy to cut and polish.

Beveled Edge

Beveled edges slope down slightly and are a great way to soften the look of the countertop. The bevel can range from a barely noticeable 1 mm to a more dramatic 10 mm.

Bullnose Edge

Bullnose edges feature a rounded profile that creates a stunning, unique look. The curve can have a tight 3 mm radius or an exaggerated 12 mm radius.

Ogee Edge

An ogee edge has an elegant double curve, curving out and then back in, providing a decorative profile. Ogees range from about 6 mm to 18 mm for the curves.

Double Bevel Edge

As the name implies, a double bevel has two angled slopes down from the top. This edge style combines the look of a bevel with a bullnose.

How to Cut the Edge Profile

Cutting the edge profile requires an angle grinder outfitted with a diamond blade. Here are the steps:

  • Mark the profile on the edge using a straight edge and felt tip pen.
  • Set up saw horses to support the countertop piece. Ensure it is secure.
  • Clamp a straight edge guide in place aligned with the marked line.
  • Fit the angle grinder with a high-quality diamond blade designed for stone.
  • Set the blade depth so it cuts through the full quartz thickness.
  • With firm pressure, run the angle grinder smoothly along the guide to cut the profile.
  • Make multiple passes if needed, taking off a little at a time.
  • Use a rubbing stone to smooth and deburr the cut edge.

Finishing the Edges

Once the edge profile is cut, finishing work is required to polish and refine the edges. This involves:

  • Grinding with progressively finer grit diamond pads, starting with 50 grit working up to 3000 grit.
  • Rinsing and drying between each pad change to remove debris.
  • Finish polishing using a buffing pad and quartz polish cream.
  • Carefully polish by hand using small circular motions until achieving a smooth, shiny finish.
  • Edge sealer can be applied for extra protection and sheen.

How to Achieve Precise Cuts

Cutting quartz edges with precision takes skill and the right approach. Here are tips:

  • Use a marker to draw cutting lines before making any cuts.
  • Take your time and don’t rush the cuts. Keep the blade steady.
  • Make small depth cuts rather than trying to cut through in one pass.
  • Pause regularly to check alignment to your guides.
  • Allow the grinder to do the work, don’t force or bend the blade.
  • Keep water nearby to wet the blade which reduces heat and wear.
  • Have spare blades available since the granite dulls them quickly.

Cut-Outs for Sinks and Cooktops

Quartz countertops often have cut-outs to accommodate sinks and cooktops. This involves:

  • Making a template to indicate the shape and dimensions for the cut-out.
  • Drilling holes in the corners of the cut-out area using a masonry bit.
  • Use a jigsaw with a diamond grit blade to connect the corner holes.
  • Carefully cut along the template lines staying just outside the line.
  • Use a handheld router and diamond bit to finish the cut precisely up to your line.
  • File, sand and polish the edges of the cut-out to finish.

Sealing the Edges

It’s important to properly seal the edges of your quartz countertop to prevent moisture from penetrating the stone. Here’s how:

  • Clean and dry the edges thoroughly after polishing.
  • Mask off the top surface with painter’s tape to keep sealer off the main slab.
  • Use a sealer specially formulated for quartz and apply several thin coats.
  • Let dry completely according to manufacturer directions between coats.
  • Carefully remove the painter’s tape before sealer dries.
  • After 24 hours, inspect edges and apply another coat if needed.

Sealing the edges will help prevent damage and keep your countertops looking pristine.


What are the main tools needed for cutting quartz edges?

An angle grinder, diamond blades, diamond polishing pads, buffing pad, edge sealer, jigsaw, router, and clamps are the essential tools. Safety gear like eye and ear protection is critical when using power tools on stone.

Is any special skill required to cut quartz edges?

Some DIY experience with tools is beneficial but no special skills are required. Patience, care, and proper technique, along with the right tools, are the keys to success. Taking a class can be helpful for learning the nuances.

How long does it take to cut and finish quartz edges?

Cutting the basic edge profile takes about 10-15 minutes per cutout. Finishing and polishing adds another 30-60 minutes depending on dimensions. Cut-outs require 30-60 minutes with cleanup. Total time can range from 1-3 hours.

What’s the best way to get clean straight cuts?

Using edge guides, cutting shallow passes, and keeping steady pressure produces the cleanest cuts. Also, brand new diamond blades help minimize chipping. Cooling the blade often prevents overheating.

How smooth can the edges be polished?

Proper grinding and polishing with fine grit pads can produce edges as smooth as glass. The highest grit pads, around 3000, paired with buffing produces remarkable results. Sealing also enhances smoothness.


With careful planning, the right tools, and proper techniques, DIYers can achieve professional quality edges on quartz countertops. While cutting quartz requires precision, breaking the process into manageable steps makes the project very doable. sealing edges properly ensures your finished countertops will retain their beauty for years to come. Paying attention to details and working patiently leads to stunning countertops to customize your space.