A strengthening US dollar and rising short-term interest rates from the US Federal Reserve in 2018 has weakened the appeal of holding gold.
The largest rock weighs about 198 pounds (90kg) and took three men to lift it onto the back of a pick-up truck.
The Beta Hunt mine, where the giant nuggets were found, had been used to extract nickel until the discovery last week. A smaller block weighing 63 kg contains 1620 ounces (about 46 kg) of gold.
Selby said the company still has another two kilometres of area to explore at the Beta Hunt Mine where he's hoping they will uncover even more gold.
RNC's chief executive Mark Selby dubbed the find "one of those once-in-a-lifetime moments".
Due to the significance of the discovery, RNC reported that it would reconsider its options for the Beta Hunt mine, which it put up for sale in March.
AN underground mine in WA's Goldfields has produced what its owner believes are two of the biggest gold specimens in recorded history in what has been described as a "once-in-a-lifetime" discovery.
"Never in my life have I ever seen anything like this", he told ABC News.
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Rhodes also wrote that Fager's exit "is not directly related to the allegations surfaced in press reports, which continue to be investigated independently".
It said the second-largest - a 63kg specimen with an estimated 1,600 ounces of gold - was worth C$2.6m.
Canada's RNC Metals no longer is negotiating exclusively with a potential buyer of its Beta Hunt nickel-gold mine in Australia following a new gold discovery there, a company official said Monday. "This sort of bonanza zone is incredibly unique".
The Kambalda resident has been in the profession for 16 years and says he has never seen anything like it. "I almost fell over looking at it ... we were picking it up for hours", he said.
"I flip my phone on and find out", he said.
The company put the mine up for sale in March, but it has now made a decision to expand its horizons beyond the current exclusive discussions with a preferred bidder.
Armed guards have been transporting the gold to a secure vault.
Most gold in WA is crushed and processed into gold bars before being sold to the Perth Mint, but it is understood the specimens from Beta Hunt could go to auction, where they may garner a premium from gold collectors.
"We're going to look at all the alternatives in terms of whether we look to raise capital at the mine level, whether we look at spinning it out publicly, whether we look at joint venturing with another mining company, this allows all options to be on the table for us", he said.