One of the things I love about jewelry is that it has the power to delight in a very simple and visceral way. Sometimes, it’s because of a piece’s materials or tactile qualities. And sometimes, as with this Glow Necklace by Carolyn Forsman, it’s because it brings out the happy kid in us.

I bought this at the Museum of Modern Art NY gift shop. It’s a very simple design – a Swarovski crystal that is illuminated when the piece is fastened. That’s because in the clasp is a tiny lithium battery that lights up an LED inside the crystal cube. It lasts 60 hours and an extra battery is included, which just pops inside the clasp. It’s really quite wonderful. A little bit of glow and a lot of happy can be yours for USD $50 ($40 if you are a MOMA member).