Gemfields Quarterly Released Today, page-11

Let me get this straight.

If we do 1,000tpd x *5 carats (GEM has 15 carats per ton)
We get 5,000 carats per day, thats 450,000 carats a month.

Now the cost side, GEM has $6 per carat, lets say we have unit costs at $10
The gems were sold for $27.88 per carat, lets say we sell it for $20.

We have 450,000 carats with $10 margin, that is$4,500,000 per quarter.

Is that right? And i feel like im being very conservative here.