Did you just receive your Fall 2013 Pottery Barn catalog in the mail? We did! Pottery Barn is actually my favorite home furniture store, I always drag my husband through that one store when we're at the mall together. In fact, we went to lunch at the mall after church on Sunday with my in-laws and the one store we walked through was Pottery Barn (haha). They just have a great look and a warm feel.
Mallory (in our Baltimore showroom) pointed out that in the most recent Early Fall 2013 Pottery Barn catalog (pg42) they show a bathroom with white ceramic tile and a Bianco Carrara border.
Excitingly we just launched a new series called 'Pure' and one of our showroom boards displays the same product: raised white ceramic tile with Bianco Carrara marble accent tile (see images below). Great minds think alike.

Pottery Barn Vanity displayed with Ceramic Tile and Bianco Carrara Border

Pure Collection White Ceramic with Bianco Carrara Accent
Let me know if you have a style that you would like to match...I can find the right tile to fit your look!