It’s a gem of a discovery and one that television viewers are set to share.
Keen-eyed Collin Hufton has clocked up a bargain when he bought an art deco ladies watch.
He snapped up the timepiece for £900 and now a gemologist has put an insurance value of almost £10,000 on the watch – which turned out to be a 5.5 carat diamond Cartier piece dating back from the 1930s.
The auctioneer and antiques dealer knew the ladies timepiece was a rare find as soon as he spotted it.
The watch, decorated with square cut diamonds and two -carat rubies, was being sold in a local auction in Batley, West Yorkshire.
Collin, 58, of Cowcliffe, said: “I have been in the antiques game all my life and I knew exactly what it was.
“Although it didn’t have the Cartier name on it, the watch had the name Gazdar.
“That’s the name of two Indian brothers who worked for Cartier in the 1930s.”
Collin has now revealed that the watch is one of his best recent finds.
He added: “I don’t think the other people bidding knew what it was.
“I think they liked the look of it, but didn’t know they were 5.5-carat diamonds.
“It’s certainly one of my best recent finds.”
The story of Collin’s timely find will feature in a forthcoming series of Channel 4 programme Posh Pawnbrokers.
It will follow his fortunes as he looks to sell the watch on and invest the proceeds into his latest business venture.
Cartier was founded in Paris in 1847 by Louis-François Cartier.
The firm is renowned for its brooches, tiaras, necklaces and watches.
Edward VII ordered 27 tiaras for his coronation and issued a royal warrant to Cartier in 1904.