I have three favourites that I alternate.
A star cut-out pendant (it's essentially a thick outline of a star--looks kind of like the Tous one except a lot smaller) in 10k gold on a 14k white chain which I where the most often.
Then I also have the mini bean elsa peretti tiffany necklace in silver that I wear a lot.
Lastly, I wear my Andrea Waines small halo necklace a lot as well (sterling silver on curb chain).
I'll take photos later~