From hunger strike medals to brooches shaped like serpents and spiders, women's jewellery can speak volumes.
There's 33 times more gold in the average handset than in the equivalent amount of ore. Yet the vast majority is never recovered.
Manufacturing minerals is an expanding field of study. Making more of them could help alleviate various pressures faced by our growing population. But how are they made, and where can they be used?
The president of the UK's supreme court delivered a hugely newsworthy judgment, but attention focused on her brooch.
Archaeologists have uncovered a 2,000-year-old amber bead scam. But humans have been making fake jewels and icons for much longer than that.
Some diamonds come from depths of more than 650km. Tiny imperfections in these gems give us clues about what's happening in Earth's hidden geological layers.
Why is jewellery so important to the story of human evolution? Because it provides a public message – even to people we don't know.
What makes a stone a gem? It boils down to a few key qualities: beauty and durability. But opal, the national gemstone of Australia, is an anomaly - it's soft.
Why do we attach sentimental value to objects and other things?
Namibian crafters may be on the verge of commercial success with the carving of the Makalani nut. But they are not sure if they want to commercialise operations.
Problems occur when a country falls in love with gold, and silver might be about to get a boost from proposed solutions.
More than 95% of industrial diamonds are synthetic so why aren't more people using them in engagement rings?