Re: What is this necklace??

@Liteblob That's a hidden career outfit unlock for the Style Influencer Level 8 Trend Setter/Level 9 Stylist career (male Sims get a hat). It's weird that the game used it with the randomize button, but I often see things happen like this with Vampires and Spellcasters. Normally the only way to get this necklace is to unlock it through Style Influencer career promotions.

Oh yeah and it has other color swatches! :D

That's a fun career btw-- it pays well and you get work-from-home options that you can often complete fairly quickly giving your Sim more time to do other fun things. I think you could even do many of the tasks while in The Realm. Besides, even Spellcasters love a good fashion style ;-D