Prince William and Kate's upcoming wedding has unleashed a barrage of royal wedding-related searches. Here are some of the most popular, according to Google.
Diamonds may be a girl's best friend but the royal engagement ring is making sapphires just as hot.
Google searches for "sapphire engagement rings" are up 50% from last year, after William proposed to Kate with his mother Princess Diana's famous blue sapphire engagement ring.
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Last updated April 19 2011: 11:47 AM ET