News on the kimberlites may be a lot closer than we think. Dont forget this came out a month ago:
'He went on to say that independent parties exploration carried out on suspected Kimberlites on the Company's C9 Lapi concession have resulted in positive identification of diamondiferous pipes. These identifications are currently being evaluated and pending results, once available will be released to the market'.
As to who 'independent parties' are? Either NML have hired folk ( I kinda doubt as they dont have the cash) or its a genuine independent third party - some other miner.