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.

Mood rings were invented way back in 1975 with the intention that the hue would correspond to the way that you were feeling. It does this through body temperature and a specialised liquid crystal.

When mood rings first hit the market in 1975, they launched one of the most memorable cultural fads in history. Within three months of the launch, 40 million rings had been sold, along with ...

London-based affordable jewellery label Astrid & Miyu’s 1970s-style mood ring (£85, astridandmiyu.com, new stock available soon) has been one of its best sellers since it launched in 2022.

Remember the 1990s, when mood rings were having a moment? Well, what’s old is new again, except with a high-tech twist: Instead of color-changing stones to indicate shifting emotions, today’s ...

GREEN SHADES: With typical green, the mood is ideal, calm and peaceful. Dark emerald green can indicate feelings of awareness and involvement. And, if the ring turns bright green, it may mean the ...