The pricing of diamonds may be artificially protected, but the pricing of companies that sell them is brutally honest. Tiffany's (TIF: 36.17, 0.00, 0.0%) sterling brand demands top prices and keeps margins fat. Its shares trade at 2.0 times trailing 12-month sales. Blue Nile (NILE: 36.84, 0.00, 0.0%), a leading online jewelry store, sells at lower prices than Tiffany but has minimal operating costs and is expected to grow its profits much faster. Its shares fetch 2.6 times sales. Zale (ZLC: 29.40, 0.00, 0.0%), a mall-based chain, seemingly offers investors the best of neither world. Its customers won't pay anything near Tiffany prices and its cost structure isn't anything near Blue Nile cheap. Growth expectations are modest, too. The stock goes for less than 0.6 times sales. Put in marked-down-tennis-bracelet terms, that's a 70% discount to Tiffany's and a 77% discount to Blue Nile.

Well, more information you could just check it out here.