Diamond Décor

But the diamond, black onyx & mother-of-pearl tiles from Pietra Firma combine all of the above. While you can walk on these durable pieces of floor jewelry, at approximately $1 million per 10-sq.-ft., it may be more practical to get just a few of these Italian handcrafted marvels for use as a fireplace surround or other fabulous wall covering. Or just get one and use it as the world’s most decadent dining table trivet; PietraFirma.com.