I think the trend (at least amongst rappers) right now is to wear the biggest cuban, the iciest cuban, and/or the most cubans at the same time. They are really getting ignorant trying to one up each other and end up looking like clowns most of the time. I think the trend is going to die when someone ices out a brolic Jay-Z cuban. That would really be overkill.
It looks ridiculous. Wearing giant cubans, icy cubans, and/or more than a few cubans at the same time is OD IMO. Just give me one or two cubans 6mm+, 14k+, no ice. Keep it classy.