GIB - Diamond in the rough, page-238

Unless the initial bulk sampling in Q3 comes up really poor, BDM have shown no signs of backing out.
Even if Blina is no good they still have the E9 alluvials, other exploration targets and finally the pipes to evaluate.
They have fully committed to down stream processing with the facility in Perth operational and will want to start feeding it with their own product asap!
When Blina was originally worked on, they just trenched the entire width of the gravel bed, with the new technology they may only need to dig 20% a huge cost saving, on top of that diamond prices are more than 30% higher than when BDM purchased.