SAN DIEGO -- They say diamonds are a girl's best friend.

If that is true, one dessert could be called a bride's best friend.

The diamond-studded wedding cake was unveiled Monday night in Beverly Hills at the Luxury Brands Bridal Show on Rodeo Dr.

The sweet treat is worth $20 million and is being called the world's most expensive wedding cake.

But, the bridal show's organizer said it won't be eaten.

The cake is protected by a team of uniformed security guards at all times.

A cake designer and jeweler teamed up to create the masterpiece.

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