** Shares of Mako Gold rise 6.3% to A$0.017, set for their best session since Oct. 23 - if current gains hold
** Mineral explorer says its directors accepted an all-stock offer from Australia-based gold explorer Aurum Resources
** Offer values co at about A$17.5 mln ($11.31 mln)
** Mako shareholders will receive 1 Aurum share for every 25.1 Mako shares, representing a premium of 10.8% to last close
** Aurum stock falls 4.5%, as of 0007 GMT
** MKG has gained 70% so far this year
($1 = 1.5473 Australian dollars)
(Reporting by Nikita Maria Jino in Bengaluru)
((Nikita.Jino@thomsonreuters.com;))