Some of the unusual rocks carry stories about water on Mars. One has hints of long-gone microbes. All tell of a dynamic, complex planet.

The US government recently installed reciprocal tariffs on various countries. In response, the GIA has temporarily halted accepting goods at laboratories abroad that need to be shipped to the US for ...

Diamond producer Rio Tinto announced the find earlier this week, describing it as one of the largest fancy colour yellow diamonds in Canada. It’s one of five diamonds larger than 100 carats discovered ...