If the treatment is successful the woman, known only as Mrs M, will give birth next year - six years after her daughter died.
The Court of Appeal overturned a High Court verdict banning the woman from taking her late daughter's eggs for IVF.
The High Court had agreed with fertility regulator, the Human Fertilisation and Embryology Authority (HFEA), that Mrs M's daughter had never given explicit consent for her eggs to be used in that way.
But appeal judges rejected the ruling, saying there was enough evidence to conclude the daughter, who died of cancer at 29, had given consent for her mother to use the eggs.
Rather than direct the fertility regulator to release the frozen eggs to Mrs M, judges ordered the HFEA to look at the matter afresh.
The regulator said it would make a decision 'as soon as possible' on the case - revealed last year by The Mail on Sunday - and a source indicated it is highly unlikely the HFEA will go against the judgment.
Speaking to The Sun a spokesman from HEFA said: 'This has been a difficult case. Such issues of consent are the cornerstone of the law and needed to be carefully considered.'
Mrs M commented: 'It's [mine and my husband's] hope others who find themselves in a similar situation will not have to go through the protracted heartache we've had.'