I am pretty sure that jeweling is usually done to bring it up to the 1% better club. This is usually done with menzerna R085 and a finishing pad. menzerna is gloss central.
I think it's worth doing. But IME it doesn't quite equal doing the same extra step with Menzerna. Still, yeah...when all I'm finishing with is M205 I usually do one time with a polishing pad and then one more with the finishing pad. The subtle diff might not be too obvious, but that doesn't mean it's not worth doing
Every time I've quit at M205/polishing it looked OK, and I do mean *no complaints*. But every time I've gone farther it really did look better.