News Earth

Most diamonds share a common origin story

Older gems, younger crystals both formed under similar conditions deep within Earth, trapped carbonates suggest

diamond

DIAMOND IN THE ROUGH  Most diamonds got their carbon from fluids deep inside Earth that contained carbonate compounds, new research shows. Tiny samples of the fluid were found inside imperfections in gem-quality diamonds.

EWAR/Pixabay

By Thomas Sumner

- More than 2 years ago

Even top-caliber diamonds aren’t perfect. And their imperfections are finally settling a debate about the origins of the gem-quality diamonds used in jewelry.