Kim Kardashian splashed the cash on a necklace famously worn by Princess Diana, with the Royal Family "probably laughing" at the extravagant purchase.
Kim, 42, had to part with more than £163,000 earlier this month to secure the precious item, which was worn by the then Princess of Wales in 1987.
The necklace, which went on auction at Sotheby's London, was created by jewellery designer Garrard in the 1920s and features an amethyst cross with circular-cut diamonds.