Ann: 180 Carat Diamond Recovered From Lulo, page-9

...early days in the stock when finding stones like this was almost a regular event.

When was the last quarter where there wasn't a 100+ carat stone from Lulo?

Q2 '23: 180 and 150ct (this ann.)
Q1 '23: 150ct
Q4 '22: 159, 134, 123, 115
Q3 '22: 5x 100+ct diamonds including the 170ct pink
Q2 '22: 115ct.

You can go back further if you want. These sort of recoveries are still a regular event, so much so that they usually only bother putting them in the quarterly reports. Looks like the 180ct is the threshold for a specific announcement now.

3.9c in opening trade, anyone who picked up at 3c last week is a tidy 30% up already.