This is an example of a concrete sink made with lightweight concrete, which is about 30% of the weight of standard concrete. Using lightweight concrete allows a bulkier, industrial look without the need for additional bracing under the sink.

Here you can see how concrete wears, adding personality to each installation.

The hole for the drain is perfectly formed to custom-fit the hardware selected

 

Here is a photo of the sink before it was installed onto the vanity.