** Shares of Gibb River Diamonds GIB.AX rise as much as 32.5% to A$0.053, their highest since May. 22

** Mineral explorer signs mining benefits and heritage agreement with the Wangkatja Tjungula Aboriginal Corp for the Edjudina gold project in Western Australia

** Says agreement enables project's mining lease application to be granted

** More than 57,000 shares change hands vs 30-day avg volume of around 51,000 shares

** Stock up 46.7% YTD, including current session's moves

(Reporting by Nikita Maria Jino in Bengaluru)

((Nikita.Jino@thomsonreuters.com;))