Chinese pairing Cao Yuan and Zhang Yanquan claimed victory in the Synchronised 10m Platform final.
Mexico's German Sanchez and Ivan Garcia Navarro took silver ahead of Nick McCrory and David Boudia of the USA, who took bronze.
The USA pair had an 8.82 gap over Great Britain pair Tom Daley and Pete Waterfield, who finished fourth.
The British duo had led the competition at the halfway mark but, despite being roared on by a vocal Host Nation support that included Prime Minister David Cameron, they faded thereafter.
A couple of errors, most notably on their reverse three-and-a-half somersaults dive, dropped them out of the podium places.