I was thinking of doing something similar for a table, but using a solid surface like ceasarstone for the top. I like the rounded square. What are the dimensions you used and which size base is it? Did you leave the original top on the pedestal and just put the new top on top or did you remove the original top?

The base comes in several sizes. Choose what size is most appropriate for your space. I designed an oval top. We removed the original top.