Hi all, this is ungrouted porcelain Calacatta tile in our master shower. I pored over all the porcelain look-a-likes when I was deciding, so I wanted to give you all a pic.
This is Cote de Este exedra. I believe it's the same manufacturer as the artistic exedra, at least there was no discernable difference in the samples. I'll update with a finished pic, and a floor pic that will be the same tile.
It fooled several people at the slab yard where I was trying to find a quartz for tops until they picked it up and realized it was porcelain.