Maybe the reason C&C has so much back stock is their imposed MAP marketing strategy they started 2-3 years ago to try and force an artifically inflated price rather than letting the consumer demand drive the sales price of moissanite jewelry. I am sure there would be much higher sales volume if MAP was dropped by C&C executives.
They started this MAP crap because it was not rare anymore. It was made available to everyone that wanted to sell it. They wanted to control the price like DeBeers does. Yes, let market forces dictate the price.
They also implemented to protect JCP and other discount retailers because it was selling on eBay for 70% less than JCP could sell it for.
They also provide replacement stones for the big retailers when the stone chips or breaks by the consumer. They don't do this for the independants.