I'm horrible at this stuff, aren't I. Free to use, please give credit. All made with the Scratch vector editor. 10 minutes for the cube, 20 for the diamond/jewel thing.
I'm a lazy idiot. THE DIAMOND WASN'T INTENDED TO LOOK LIKE THE SIM THING, BUT I GUESS YOU CAN USE IT IN PROJECTS THAT HAVE TO DO WITH THE SIMS.