Braxton's Million Dollar Baby

With tickets starting at $69, it doesn't cost a fortune to see Toni Braxton's Las Vegas show "Revealed," but her mic sure does.

Braxton has struck a deal with The Giantto Group, a high-end jewelry company, to use their one-of-a-kind Million Dollar Microphone (TM) throughout the run of her show.

The mic is made of white gold and encrusted with 650 karats of diamonds ... enough bling to make even Diddy jealous.

Regarding the pricey prop, the six-time Grammy winner, who filed for bankruptcy in the 90s, said "It's so extravagant, like taking a bath in Dom Perignon. I love it!" Bathing in champagne? That's not extravagant -- just stupid!