24.78 carat pink diamond will be up for auction at Sotheby's.

Next month a 24.78 carat pink diamond will be up for auction at Sotheby's. The impressive emerald-cut gem, which is expected to fetch £24 million, was last sold 60 years ago.

It belongs to the rare IIa classification which covers less than 2% of the world's gem diamonds.

If you've got that kind of money sloshing about your bank account, the Sotheby's Magnificent Jewels auction takes place on November 16 in Geneva, so book your flight now!