Originally Posted by
Wasabi Tofu
No.
You are promoted to a Diamond status after qualifying miles credited.
Usually, 2 days after a flight.
You don't have a Diamond member card.
But CX computer system should recofinze you are diamond.
You may ask first class checkin counter agent at Hong Kong airport.
They should know your status, especially if you can see it online. I made Gold on my usual JFK-HKG-JFK route, but getting to HKG pushed me over the threshold. On my return, I hadn't yet received the card, but the check-in agent congratulated me on my upgrade to Gold tier.