Hmmmm.... Looks like tropic brown or maybe a engineered stone like hanstone or caeserstone. I'd skip the slab liner near the window, accentuates the window. Should keep it neutral like wall

The floors look like 12 x 12 tiles on a diagonal

What kind of edge was used on the countertop?

Picture is kinda grainy, my guess is 1.25" square slight radius.
Floor if it's a natural stone, looks like Durango travertine

The tops are quartz, made by Cambria, however we don't have the color information at this time.