If given the chance and the resources, I would like to invest in loose diamonds. Obviously, that would be a very good investment having pieces of the hardest stone. Diamonds are forever, as they say.
How about you? Do you love jewelries? Are you attracted to its spark? Just make sure that you are buying the real ones because looks could be deceiving! Yes, I am reminding that myself! 
Every woman has this fascination about pearl necklaces. I recently watched in one of my favorite TV shows about two wives fighting over a pearl necklace. It happened that the ex-husband of wife 1 gave wife 2 a pearl necklace yet he could not pay or did not give any money for the school tuition fee of his child with wife 1. Worth fighting for? 
A pearl looks good whether it is on a ring or as a pendant or as earrings and of course the pearl strand necklace that every lady would proudly wear on her neck.