I have one pearl paint job under my belt, and it happened to be white. I did it on a 1985 GMC Jimmy.
There are several ways to achieve a pearl look. One way is to simply paint the car white base coat, then mix your desired amount of pearl in the clear, and do a pearl coat, then a straight clear on top of that.
This method is very tricky, so please interview your painter and request samples of their work first. It is hard/impossible to see the pearl going on. A difference in mixing, or spary pattern will cause the pearl to be splotchy, or you may even get a pattern in it that is not uniform.
The other methos is a tripple stage type paint where the base coat is tinted with a pearl base. You don't get as brilliant of a flip flop, but you get more consistent results. Ford used a red type pearl in the mid/late 90's on many cars.
The only other and maybe not so obvious concern with pearl is the difficulty touching up or blending. If you have to do any repairs on the car it is almost impossible to make a perfect hide as the free floating in the clear pearl would require the same exact mix, air pressure, spary pattern, and distance away from the vehicle when spraying for an exact match.
Also, if the painter gets a run in the clear/pearl coat, that is stuck in the finish unless it is blocked all the way back down, re-sprayed with white base, and start all over.
So, that is why a good pearl job is so expensive, and you don't see more of them on the street. When done right, they are out of site! With the many curves on a vette, pearl paint is a great compliment to the car.
One last note. There are different kinds of pearl tints. I think Violet pearl looks the best on a white car, yet it will still flip with a green/blue tint under the right kind of light.