The owners choose those sinks but they look like a Porcher or Kohler product. Sorry, that's all I can provide.

It's the Kohler Archer drop in sink K-2356-8-0

http://www.us.kohler.com/us/Archer-drop-in-bathroom-sink-with-8-widespread-faucet-holes/productDetail/Drop-in-Sinks/425417.htm?skuId=393912&brandId=1012117&isSeachPage=true&pageName=globalSearch&hash=id%3Dfilters%26startIndex%3D40%26scrollTop%3D0

You are correct. Thank you for giving us that information.