To be fair, it wasn't just David. Almost everybody got a shot in and those that didn't looked somewhat bewildered by it all.

Oh well, I've not heard of any feng shui experts claiming that rearranging your living room can cure cancer, so I'm going to put in the "mostly harmless bullshit" column. Also there is something to be said for really good interior design, so maybe that's how he started off before he realised he could charge a different type of client more for the same thing if he said some shit about energy flows.

Your video, David Mitchell makes a Feng Shui expert squirm, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

Lawsuit for false advertising?

Overall, this seems rather analogous to bottled water. Penn and Teller did a brilliant "Bullshit" episode about bottled water back in the day. It got sifted, but is now dead. The entire episode (first half is about feng shui, second half about water) is available on vimeo, though:
https://vimeo.com/193125042

Long story short, most bottled water presents itself as coming from a mountain spring, or glacier, or whatever. But in reality, the vast majority is simply municipal water from whatever city the packaging plant is in, usually not going through any additional filtration or purification at all.

At least with water, it is possible to test for contaminants. Diamonds can be graded / assayed to certify some basic characteristics, but of course there is no straightforward way to track their history and know where they came from, etc. At least, not short of having a paper trail tracing it back to the place and time that it was mined, which could easily be faked.

Bottled water gets away with promoting an "image" of being sourced from mountain springs or whatever by never actually claiming that it is in a legal sense. Usually there is fine print available noting the location that the water came from / was packaged. This diamond company seems to go beyond that and to make claims about their diamonds that are impossible to actually prove. Hopefully they get nailed/shut down.

I'm sorry but by default anyone who uses the phrase "feng shui" in my book is a pretentious fuck.

I was never implying that anyone else should do this -- I just wanted to do some spring cleaning.  Having all those stale videos in my account was ruining its feng shui. 

is it just me, or is there some seriously bad feng shui in that office?

you put a guy in the seat, and the officer is basically trapped behind his desk??

Pffft.... You kidding? My head would totally fuck up your house's feng shui.

"I hate Macs. I have always hated Macs. I hate people who use Macs. I even hate people who don't use Macs but sometimes wish they did. Macs are glorified Fisher-Price activity centres for adults; computers for scaredy cats too nervous to learn how proper computers work; computers for people who earnestly believe in feng shui.

PCs are the ramshackle computers of the people. You can build your own from scratch, then customise it into oblivion. Sometimes you have to slap it to make it work properly, just like the Tardis (Doctor Who, incidentally, would definitely use a PC). PCs have charm; Macs ooze pretension." --Charlie Brooker

Quoted from I Hate Macs
http://www.guardian.co.uk/commentisfree/story/0,,2006031,00.html

The full run of Hugh sketches from The Armando Iannucci Shows. Each week, Armando would gently cajole Hugh into reminiscing about his past. Sadly, Hugh - full name Hugh Cecil - passed away on February 11, 2004. Goodbye, Hugh.

"Well, we never had feng shui in those days, so we put all our cupboards in the wrong place. As a result, all our businesses went bust. That was the start of the Great Depression."

- Hugh Cecil