Enormous pearl thought to have come from a giant clam could be the biggest in the world and, if authenticated, is estimated to be worth more than $100m
A fisherman in the Philippines has kept what might be the largest natural pearl ever found hidden in his home for more than 10 years.
The enormous pearl is 30cm wide (1ft), 67cm long (2.2ft) and weighs 34kg (75lb). If it is confirmed to have formed within a giant clam, as has been reported, it would likely be valued in excess of US$100m.
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Source: Guardian Environment