These look as if they were custom made - can you find more details from the image you scraped it from?

Thanks so much for your response. I sort of thought they might be. I pinned it off of Pinterest but when I try to open it it's "a suspended page" ??? Do you think it's pottery?

No, I think it is a stone that has been carved out - I see them quite a lot in my line of work. They are top end customized designs - I have found this one in the UK which has used a similar process (it seems to be ground round on the outside and hollowed on the inside and then smoothed)

Those look great. Any idea where to find those in the US? I am sure our guy can build the cabinet

Thanks for your help ASV Interiors!!