$5-$8 sqft with $2500 min job, takes 4-5 days to install. No better choice for a basement floor. Sanitary, no seams or grout lines, and it's a radon block. The elegance and beauty can't be fully captured on film. Much more dynamic in person.
As stated above, the cost is not as important as the durability and clean air vs carpet... you can use accent rugs, too. Our 2400 Sq ft. main floor cost was between 15-22K.
Elite Crete of Michigan
Sustainable Dwellings