I'm a sucker for colorful gems. That's what I recently have discovered. Crystals of variable color, ruby, sapphire,... the use of different colors and stones can be so beautiful. Tanzanite, emerald, moonstone, tourmaline, labradorite, topaz and many others. The more multi stones and different shapes in one design, the better.
A great example of this all are the incredible earrings by Margery Hirschey. The pieces look like they popped right out of a fairy tale.
Different shapes with pretty colors. Very girly designs. Sigh.
I am personally not a wearer of such earrings but gosh I wish I was this ladylike enough to have at least one pair.