At 1,800 pounds, Stone Forest's Papillon bathtubs are the heavyweight champion of bath luxury. Available in marble, granite, limestone or travertine, each tub is carved from a single block of stone. With an oval shape that resembles an upside down turtle shell, Papillon series tubs are 68 inches long and 48 inches wide, and can hold 78 gallons of water.
Pictured: Papillon tub in Cararra marble.
Price: $23,000 for Cararra marble. Also available in black granite ($18,950), limestone ($22,000) or silver travertine ($22,000).