Cluff Resources halted mining last month after its financial backer, Consolidated Press Holdings Limited, withdrew from an agreement to buy and market gems from the site.

Director of Cluff Resources Scott Enderby says the company has permission to continue mining on the site but first needs to ensure its viability.

"Firstly the application which we have got for a modification and development consent, we have still got the option to take that a bit further so that is an option," he said.

"Obviously we need to clarify our position with regard to continuing the mining and possibly getting some more ground which will enable us to keep mining with more efficiency.