ok, here's my first attempt of making jewelry! It's a mix of silver/white gold/diamonds/Amethyst/filigrane stuff I've found and kinda liked 

 I don't like yellow gold, but I think I'll be making some for those who like. 
Mesh from 
lianasims2 included. Credits and thanx to Liana!
Yeah I know the screenshots suck, I'll do better next time.