There's a way of getting the 'diamond teeth' look on a budget, and at your own convenience. That's by paying for a 'grill' which you can wear like a retainer and pop in and out of your mouth whenever you feel like it. So when you're attending an occasion where it would be appropriate to have diamond-studded teeth - if such an occasion exists - you slip the grill in and smile for all the photos. When you get home, you pop it out again.
That sounded like too much effort to rapper Lil Wayne, who thought it would save him time if he just had diamonds on his teeth all the time and never had to worry about where he'd left his grill. The diamonds in his mouth are all completely real, and they're there permanently. As Wayne revealed in an interview with Jimmy Kimmel, he brushes them carefully every day with Colgate, but thus far they haven't caused him any problems.