that's a good idea except for the profitability.
i would have to purchase diamonds at SOL station for 2000 solari, but can only sell it for 1750 solari. it would cost me money.
the easiest way would be to use QP for payment. the mining accords have declared that QP in this situation is 1,000,000 solari, so your offee on q100 million would be q100 QP

As for Herod - we have not completely rejected your offer per se, merely delayed a decision. It depends on our decision for our posturing against LOEP.