Your mood ring color might say a lot about how you're feeling (hint: blue doesn't mean sad). Use this at-a-glance chart to learn more!

What color psychology says about the accuracy of mood ring color meanings.

The idea behind a mood ring is simple: Wear it on your finger and it will reflect the state of your emotions.

As the ring wearer's body temperature changes, so, too, does the mood ring's crystal change. This retro jewelry choice is enjoying a comeback — here's what to know about this nostalgic item.