Gibb River Diamonds (ASX:GIB) has finished its Phase 9 aircore drilling program at the Neta Prospect in the Edjudina Gold Project, in the eastern Goldfields region of Western Australia.

The company said a number of holes have been cased and that it's waiting on the downhole survey crew to undertake the required density and survey data acquisition. 

It also said it's currently working with BM Geological Services to estimate a geological resource for the Prospect, and aims to have a mineral resource estimate published as soon as possible.

Shares of Gibb River Diamonds are up 17% mid-session.