Diana's 'wicked' £900 Revenge Dress: 30 years ago today the Princess of Wales wore the little black number to steal limelight as her husband confessed to affair with Camilla

Living well is the best revenge,or so the saying goes.

For Princess Diana,revenge took the form of an off-the-shoulder,form-fitting,silk dress that made history when she wore it 30 years ago today.

On the night Prince Charles admitted to his affair with Camilla,Diana slipped on the little black number by designer Christina Stambolian to send her own message. 

As Charles revealed his sin to presenter Jonathan Dimbleby in a TV interview,Diana wore the Revenge Dress - as it was quickly dubbed - for her attendance at a glitzy fundraising dinner at the Serpentine Gallery.

Charles's conversation was hugely newsworthy. Having been asked if he had been 'faithful and honourable',the future King said 'yes',before adding: 'Until (the marriage) became irretrievably broken down,us both having tried.'

But it was Diana's 'response' in the form of her choice of dress - in a colour that the royals reserved for mourning - which made even more of an impact. 

Royal writer Tina Brown even described it in her 2007 book The Diana Chronicles as her 'f***-you dress',and newspapers at the time agreed.

The Mail reported: 'Charles blusters as Diana dazzles'.

Christina Stambolian (pictured) says she remembered Princess Diana asking for a 'special dress for a special occasion' in her store back in 1991

He told the Channel 5 documentary,Secrets of the Royal Dressmakers: 'She said,"I can't go,I can't face the world knowing what Charles has just said. 

"And anyway I haven't got anything to wear." I went to her wardrobe room and pulled out the Christina Stambolian dress,and showed it to her.'

He also added that she was worried that the slinky dress would not fit her anymore,having bought it three years prior. 

He said: 'I zipped her up and she looked a million dollars.'

And for a couple of hours,at least,her husband's television confession was forgotten as all eyes were on Diana.

Princess DianaRoyalsJonathan Dimbleby