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Cost of Cultured Onyx Countertops: How Much Should You Pay?

Written by Kyle Murray on August 05, 2019
Edited By Ross Kernez, Last Updated On January 03, 2024
Reviewed By Samantha Peterson
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Onyx is one of the most beautiful natural stones that you can find. However, one of its major downfalls is its ability to easily sustain damages. Because of this, you may feel that onyx is not the best choice for a countertop. But there is a viable alternative if you do not want to deal with the maintenance of a natural onyx countertop. Cultured onyx is an engineered stone that replicates the look of onyx, while not requiring anywhere near as much maintenance as the natural stone does. 

How is Cultured Onyx Made? 

Cultured onyx is manufactured by combining a mixture of natural stone and polyester resin with a gel coat finish. 

Why Should You Choose Cultured Onyx? 

Cultured onyx is a great choice because of the material’s ability to replicate the look of natural onyx, while being more durable than the natural stone. A cultured onyx countertop will give your home a stylish feel. Because it is translucent, you will also be able to have the countertop backlit. 


How Much Do Cultured Onyx Countertops Cost? 

The price of cultured onyx depends on a variety of factors. Like all countertops, how much of the material you require will impact the cost. Additional factors that can impact the cost include cutouts for sinks. In general, cultured onyx countertops start around $75 minimum per square foot. 

What Else Should You Know About Cultured Onyx Countertops? 

One important thing to know is that you should never attempt to install your new cultured onyx countertop on your own. By hiring a professional to install the countertop, you will significantly lessen the risk of any damage occurring. 

Installing a cultured onyx countertop is a smart choice if you are looking for a countertop to replicate the appearance of onyx but do not want to deal with the difficult maintenance the natural stone requires.

National Average


(30 sq.ft. of moderate countertop with eased edge, undermount sink, and no backsplash)

Low: $2,000
Medium: $4,000
High: $6,000+

Cost to install kitchen countertops varies greatly by region (and even by zip code). Get free estimates from countertop installers in your city.

Find out how much your project will cost.

Why you can trust
When it comes time to get the job done, our fabrication and installation teams have the equipment and expertise it takes to get your project cut and delivered the right way, every time. We at are known for our incredibly quick turnaround, as we understand having countertops and other mainstays installed quickly and properly is important to our customers. We value your time, and our goal is to create the best work possible and have you enjoying it as possible.
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