This bishop's mitre is encrusted with 3326 diamonds, 164 rubies, 198 emeralds and 2 garnets
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Priceless Naples treasure of San Gennaro goes on show

30 October 2013 Last updated at 08:17 GMT

One of the world's most valuable collections of jewels, dedicated to the patron saint of Naples, has gone on show in an unprecedented exhibition.

It's said to rival in value Britain's crown jewels or those of the former tsars of Russia.

The 70 pieces were transported under armed guard to a museum in Rome.

David Willey reports.