I ordered (10/5/22) two rings (Jeulia Butterfly Round Cut Sterling Silver Ring in Purple & Blue).
Shipping happened the next day (11/5/22).
One thing that seemed odd to me at this point about the shipping is that Jeulia advertises their manufacturing is in Hong Kong, but according to YunTrack, the package was shipped from Guangzhou in China. Seeing that these two places are about 170km/106miles apart, it seems a bit odd, but maybe it's cheaper for them to ship from here.
Two weeks later, (24/5/22) the rings arrived!
On the delivery label, it's marked as leaving from a Hong Kong YunExpress depot. That sorts that out anyway. It seems the rings are definitely made and shipped from Hong Kong.
Now, some of my stress came from the fact that the stones in the rings were Jeulia Stones^tm which means that they're lab-grown. I was worried that maybe they wouldn't refract light as well as I hoped, and that they would be dull.
This was a needless worry. The stones are beautiful and bright, and sparkle exceptionally well in even just dim light, but are dazzling in direct sunlight.