Hi! This is a marble tile that was purchased from Floor and Decor. Here is a link to the exact product:
https://www.flooranddecor.com/marble-stone/carrara-milano-polished-marble-tile-921100748.html#q=carrara+milano+polished&start=2
Hope this helps and thanks for the inquiry.
Karla carrara-milano-polished-marble-tile
Savannah Construction