Do residential light fixtures above 20 amps require two or more circuits?

Case in point, 2,000 lb crystal chandelier from Tsarist Russia, about nine feet long, same wide, rewired ages ago and in need of updates, 105 light bulbs at 25 watts each... That's 2,625 watts, 21 amps @ 125V and almost 22 amps @ 120V.

The chandelier is currently on three or four dimmer switches but the pattern is semi-random. There are eight lights around the perimeter, one in a beaded-crystal globe at the bottom and 96 interior bulbs.

Currently, I don't know how many circuits feed it.

What would you do if the chandelier could be totally rewired?

[Linked Image from img.photobucket.com]