Well they do say that:
"The teeth-test, of course, is overrated..." etc. Besides, it refers to identification of cultured pearls - what the lady was shopping for, clearly - and simulated. When she says 'natural' she refers to cultured pearls as opposed to simulated. Then, the journalists takes the article on a different route and starts to talks about 'natural' as non-cultured in the next paragraph [with 'in these sense...' etc].
Or at least, that's what it sounds like to me.
and
"Real, better known as natural, pearls are practically impossible to buy in Hong Kong or anywhere else, these days." etc.
I cannot find any reference to a trade show for naturals.
Although... if anything comes close would be the auctions there. HK is the largest market for natural pearls, at least for this one channel.
I don't find much to argue about in the piece. They do seem to take the natural (non-cultured) for granted a bit, as a normal and usual market presence albeit at high prices - but again, they are in Hong Kong. And there are allot of topics put together - an industry and product overview, history, buyer attitudes... Obviously a feat to put together, but does feel a bit like information overload if this were the first thing anyone would read about pearls.
However, I find the tone just right for a wise 'promotion'
that isn't actually pushing anything but would make readers confident about pearls in general nonetheless. Maybe it wasn't intended that way... but I'd bet it works
Wish this was the ONLY kind of advertising ever
so I could tun off the pop up and adware blocker. Phew!