Ann: Exceptional Lulo Diamonds Sell for A$5.1 Million, page-22

Keep in mind that those figures are picked and chosen.

You are basically Picking the price of the specials they have, and comparing it to the average price of All diamonds. That is like picking a Designer handbag and comparing it to the cheap china made bags.

The correct comparison should be US$1,600/carat in invoiced US$ sales vs US$120/carat
as that is the average of all LOM diamonds vs the average sale of all diamonds.

however as you can see, that is still a multiple of 15x, so a positive to be sure, and an accurate one.