I've heard about this from another flyer in the CX lounge in HK. From what I gather it's a bit like the QF program which is invitation only to corporate executives (read high profile CEOs), high court judges, movie stars, rock stars, sports stars etc etc etc (porn stars????)
With QF, I they have a separate lounge area as well in some places in Australia but I don't know about whether other OW airlines - perhaps they have a similar partner offer as per the ordinary lounge access.
It's strictly invatation only and status such as diamond on CX doesn't get you anywhere - its not what you are, it's who you know - according to my source.
cardenio98