Over the last little while, the gem market has really tanked.
Average price has fallen from 150-160g range per gem to 100-110g range, for most cuts.
With enough volume (40-50 gems, under 110g), to make me not want to buy them all out and try to reset the price.

On the plus side, Saronite is also falling, with the average price at 11-12g per stack.
And Eternals are also going down fairly quick, so the costs are at least decreasing too.
But Scarlet Rubies are falling too; the spreadsheet says at current prices for Scarlet Rubies, 14g or less is a profit from prospecting alone.

Still... 90-100g profit per gem sold, is ~2750g a day, for every little time invested.
And I'll be adding five more JC's to the mix eventually.