Cat Deeley tried on Dame Shirley Bassey's £2million jewellery collection on Wednesday's episode of This Morning.

The presenter, 47, seemed delighted to be given a glimpse at the stunning pieces ahead of them being sold at a charity auction.

During the segment Cat even got to try on a huge diamond ring that Sir Elton John had gifted Dame Shirley, 87.

The jewellery expert that joined Cat and her co-host Ben Shephard on the show said the guide price for the ring was from £10,000-£15,000. 

Cat remarked as she showed off the 1960s vintage Van Cleef & Arpels piece: 'It does kind of say Elton all over doesn't it!'

The expert said that he thought it would sell for much more given the provenance of the jewellery. 

Sir Elton gave Shirley the ring after she sang at one of his Aids gala evenings and she has said of the ring: 'I've worn it so many times!'

Shirley famously sang about diamonds in the title track of the 1971 James Bond film Diamonds Are Forever starring Sir Sean Connery. 

Next Cat tried on a 60 carat necklace worth £250,000 as she said: 'It feels heavy but dreamy. Have you got a spare £250k for me!?'

Ben then joked: - 'I hope there's a tracker on these!'

There is also a yellow diamond ring, which could fetch between £142,030 and £172,150, and an aquamarine, sapphire, diamond and gem set estimated to sell for between £51,640 and £60,250. 

A diamond and gold parure created by Cartier estimated to fetch between £172,170 and £215,210 is also included in the auction items. 

The proceeds will go to Dame Shirley's chosen charities after the auction.  

More than 80 pieces of jewellery will be exhibited at Sotheby's in Paris from October 4 before being auctioned on October 10.

Dame Shirley, whose other hits include Big Spender and Goldfinger, said of the auction and her jewellery: 'I fell in love with jewellery when I first discovered natural pearls as an up-and-coming singer and I bought myself my first string of pearls - the first piece of jewellery I'd ever bought.

'However, I quickly graduated to my lifelong passion for diamonds which preceded the recording of Diamonds Are Forever.

'In fact, I accepted to sing the song because it rang true to me and the way I felt about diamonds then and now.'

She added: 'Collecting jewellery for me is like collecting memories and this collection is full of them.

'All the pieces are meaningful and have a story to tell, whether I bought them for myself or they were gifted to me.

'There is this beautiful 1960s vintage Van Cleef & Arpels ring covered in white diamonds that Elton John gave me after I sang at one of his Aids gala evenings and which I've worn so many times.

'Or the ruby and diamond heart parure I spotted in a fine jeweller's window during a stopover in Bangkok on my way to my very first concert tour of Australia.

'And perhaps one of the most special pieces in the collection is this emerald parure I bought myself to commemorate my very first Royal Variety performance in front of the late Queen.'