This will be an important case to watch, it is all about non-disclosure of assets.
Mother-of-three Varsha Gohil accepted £270,000 but says her ex allegedly squirrelled away £35million.
And Alison Sharland pocketed £10.3million at the end of her marriage – only to find her husband's company was valued at nearly a billion dollars (£620million).
Now the highest court in the land will judge whether divorce settlements in which spouses deliberately hide their fortunes should be ripped up. In both cases, lower courts ruled the men were dishonest – but did not make them pay any extra money. Over-ruling the settlements would set a new precedent.