We confess: we hadn't heard of Eton shirts before, but we probably should have, as the Swedish company is now celebrating its 80th birthday. In honor of the event, the company has created an ultra-special shirt with a price point well out of reach of everyone except the Hollywood glitterati.

Apparently nothing says "Yay! It's our birthday!" better than making a shirt from Egyptian cotton with diamond-encrusted studs and cufflinks. As far as we know, this makes it the most expensive shirt in the world, with a value of £23,000 ($46,700).

The shirt isn't yet available to buy, though: because it's a one-off, it is first... wait for it!... touring the world, making stops at Eton stores in Milan, LA and Stockholm before being auctioned for charity sometime in 2009.

In other words, this shirt has more diamonds than we ever will and is better traveled than us, too.

[Via Brandish]