The improved bid offers "a highly attractive premium", Rio said.
Rio said that if the ruling was made, it would mean that BHP must "either announce a firm intention to make an offer... or announce that it does not intend to make an offer".
Diamonds from the mine likely to come into commercial production in 2016, Rio Tinto said.
However, Rio Tinto said it expects growth in China to rebound in the coming months.
England defender Rio Ferdinand said he thought the broadcasting of the match marked "a good step forward".
Earlier this year, Anglo-Australian mining giant Rio Tinto said its chief executive Tom Albanese would forgo his annual bonus.
The joint venture is expected to begin work in the first half of next year, targeting between three and five projects initially, Rio Tinto said.
Chief executive Tom Albanese stepped down by mutual agreement with the board, Rio Tinto said, and has been replaced by Sam Walsh, chief executive of the miner's iron ore business.
BBC: Rio Tinto boss Tom Albanese resigns over $14bn write-down
But Rio Tinto said the industry was already making huge strides in adopting the green mantle, setting up a three year research programme into industry practices, a project which culminated in a conference in Toronto in May.
For instance, Rio Tinto Alcan said it plans to close its U.K.-based Lynemouth smelter.
FORBES: Some Aluminum Production Dips Below Costs; Output Cuts Likely If Condition Persists
Terry, who has been replaced by fellow defender Rio Ferdinand, said he abided by Capello's decision to demote him.
After four days of inspections, authorities in Rio de Janeiro said that 199 of the 209 venues they inspected had irregularities.
BBC: 'Unsafe' Brazil nightclubs closed after Santa Maria fire
Mr Rigby said he would "never hurt" the child and said Rio's mother Kirsty Smedley was responsible for some of his injuries.
Though they apparently were authorized to transport passengers in Niteroi and neighboring Sao Goncalo, the suspects were not allowed to operate the van in Rio, he said.
"The choice for Riversdale shareholders is clear - accept the offer or risk seeing their share price return to pre-bid levels, " said Rio Tinto Energy chief executive Doug Ritchie.
Gryner also said Rio was unlikely to suffer from the "ghost town" effect that blighted central London during the current Games, as non-Olympic visitors stayed away, fearful of transport chaos and long lines.
The development comes after some 200, 000 people protested in Rio de Janeiro against the bill, which they said would deprive Rio state of much of its oil revenue.
"We are anyway already just about the most regulated industry in the world, " Rio spokesman Hugh Leggatt said.
And in Colorado, a spokesman for the Rio Grande National Forest said a fire 15 miles southwest of the small town of Creede was reported.
The mayor of Rio de Janeiro has said the stadium due to host the athletics events at the 2016 Olympics will not be demolished, despite structural problems that have led to its closure.
Alexander Gorra, head of the international department at BNY Mellon ARX in Rio de Janeiro, said that Japanese inflows into fixed assets began to slow in October 2010 when the government increased the financial operations tax, known as the IOF, for foreign buyers of government debt.
Ms Pidgeon said the challenges Rio faces in the run-up to the 2016 Games are "dramatically different" to London's.
The police chief in Santa Maria, in the southern state of Rio Grande do Sul, said that the fire was caused by cheap fireworks meant for outdoor use.
BBC: Brazil Santa Maria nightclub fire death toll rises to 240
It is believed that the driver and two others made other passengers leave the minibus before attacking the two tourists on the outskirts of Rio de Janeiro, police said.
"He saw the accident and he tried to warn his dad to say avoid Flamingo (Road)" because he knew his father was nearby at the Rio casino, Tehran Boldon said.
In a further twist, as part of the investigation into Rio, Chinese authorities are said to have seized information which may provide insight into the mining firm's production costs and capacity.
"We are delighted that both golf and rugby sevens have been given the opportunity to take part in the ultimate celebration of sport at the Rio 2016 Olympics, " said the British Olympic Association chief executive.
In Colorado, Mike Blakeman, a spokesman for the Rio Grande National Forest, said a fire 15 miles southwest of the small town of Creede was reported at about noon Friday and the cause of it remained under investigation.
Given the violence that plagued Colombia in the early 2000s, the political situation in Venezuela and the lack of basic infrastructure in the Andean countries, they narrowed their list of possible host cities to Buenos Aires, Argentina, and Sao Paulo and Rio in Brazil, Herzog said.
The two tourists boarded a public transportation van in Rio's Copacabana beach district, shortly after midnight on Saturday morning, said Alexandre Braga, police commissioner for Rio de Janeiro's state police force.
应用推荐