Moriador's suggestion of including both versions sounds good. If you go with one then definitely I's say use a few as possible (#2). It's good to give people options but try to consider what most people would actually use and the effect of burdening the majority with the added complexity in this case. I don't really know about crowns but I wouldn't think the average one would have more than 4-5 types of stones in it. & they'd be organized in a pattern

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken