How Much Katy Perry's Wedding Ring Costs

Credit: Gilbert Carrasquillo/FilmMagic; NATIONAL PHOTO GROUP

She's a firework -- with the eye-popping, technicolor bling to prove it!

Since her wedding to Russell Brand in India last month, Katy Perry has been flashing her colorful new wedding ring wherever she goes.

And, of course, the zany 25-year-old singer's matrimonial bling isn't your typical wedding band.

"Katy updates the classic solid, wide wedding band by adding colored diamonds set in darkened platinum," jewelry expert Michael O'Connor tells

"The mix of champagne, cognac and yellow diamonds set in platinum to enhance the stones and make them pop," O'Connor adds.

Estimated price tag: $75,000.

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"Colored diamonds will definitely complement Katy's elaborate costumes," O'Connor tells Us. "Looks like there are over 100 diamonds on this ring!"