Check out the largest pink diamond to ever be auctioned, price tag starts at £15m

It's called a Rare 'Fancy Vivid' - 16 carat pink diamond & is so rare that only one in 100,000 diamonds possess the same colour depth. The 16 carat stone would be on display in London this week as part of its international tour ahead of its sale in Geneva next month. 

More pics after the cut..

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