Take the photo to your local stone and tile supplier and have them match the marble material to something that you see in person that you like.
Justine

You can find similar marble tiles at ErthCOVERINGS, new this year is the Giovanni Barbieri Stone Collection www.erthcoverings.com

It's a bevelled subway marble tile on the walls, 12x12 on the floor. Check you local supplier!

The 12x12" on the floor is a key part of the design. It is Italian Carrara Bianco tile but it is a high quality. At The Builder Depot we sell the premium 'C' grade Italian 12x12" for $8.00/SF: http://www.thebuilderdepot.com/cacbiho12ma.html

Pictures attached shows our product and then what else is available in the market place. It shows a 12x12" from us and then a competitors product, this costs just $7SF, but for a lower price you get a much darker base.