The best result was 31m grading 3.6 grams per tonne from 241m.
Drilling is continuing at the project with about a dozen rigs in action.
De Grey's maiden's Hemi resource estimate of 192 million tonnes grading 1.1gpt was reported in June.
A scoping study is expected at the end of the quarter.
De Grey started the September period with A$71 million cash, having spent $16 million in the June quarter.
On a weak day for the gold sector, shares in De Grey were down 7% to $1.19, capitalising the company at $1.5 billion.