Factories in China are now making synthetic diamonds, which are laboratory-grown stones not found in nature. Many of these diamonds are sold as jewellery, but falling prices and extra supply are pushing manufacturers to find new industrial uses. One important new use is helping to cool artificial intelligence, or AI, computer chips, which often become very hot when they work hard.

The reason this is happening is because AI chips generate a lot of heat. If this heat is not removed well, the chips can slow down, use too much electricity, or even break. Diamond materials are very good at moving heat away quickly, so engineers mix them with chip components to keep everything at a safe temperature.

Now, some Chinese companies are making diamond products for use in electronics instead of selling them as jewellery. This change could help factories earn more money, and it may also make computers run faster and safer. If companies succeed, lab-grown diamonds may soon be hidden inside powerful computers, not just seen in rings or necklaces.