Ann: Burgundy starts work on polishing Fancy Colour diamonds, page-9

Regardless of the the value this batch it's more about proof of concept.

Doesn't matter if we get $50k profit or $500k the main thing is we can get the stones, do the work and then make money on the sale smoothly and quickly. And then scale this model to get more stones and more $$$

This is only one cog in the machine and even if it only adds $1 million a year profit to the pie it's early cash flow to help get the other parts up and running.
Not to say one day this couldn't be making the company a lot of $$ but baby steps.