Geneva - A plot to flog off a 'rare yellow diamond' has gone pear-shaped Interpol sources said today.
Brilliant refraction by the 110.3 carat 'Sun Dance Squid' - said to resemble an octopus' testicles, er...tentacles! - makes the stone worth an estimated $15million.
But gemmology experts have warned 'it could be an impostor' in the shape of the notorious Custard Tart Star, a home-baked fraud cooked up in a Chinese pet crematorium that turns deceased canaries' ashes into high class bling.
"Plenty of bereaved people are turning pets and loved ones into precious gems," a spokesperson for RIP farmyard poultry gem specialists Rocks-From-Cocks commented this afternoon.
The process takes approximately 12 stone (168lbs) of human flesh to create just one carat of diamond which is then irradiated to produce a flawless finish.
Tonight's star exhibit may have been fashioned from several tonnes of dead animal remains - including a Killer Whale - 'or the human equivalent of Ann Widdecombe', a fraud-watch website warned sale punters.
Bidding is expected to start around five million squid.