THE world’s largest flawless diamond is about to promote for at the least £13million.

The pear-shaped Golden Canary, which weighs greater than 300 carats, went on show in Dubai yesterday.

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Found in a pile of rubble by a younger lady enjoying in her uncle’s backyard within the Nineteen Eighties, it turned out she discovered an 890-carat tough diamond – one of many largest the world had ever seen.

However after being reduce right into a pear-shape, it grew to become the most important flawless or internally flawless diamond ever graded by the Gemological Institute of America.

The diamond can be auctioned with out reserve by Sotheby’s in New York in December.

Bids begin at $1.

It is not the primary time a diamond value tens of millions has been put up on the market.

Beforehand we advised how a pensioner was surprised to find a bit of jewelry she was going to bin was a 32-carat diamond value £2million.

The girl in her 70s purchased the stone at a car-boot sale years in the past, however had no thought of its worth.

However she took it to be valued after a neighbour prompted her – and was gobsmacked to search out the rock was an “off the dimensions” diamond.