[Rockhounds] Ultra-rare diamond with another diamond inside found in Siberia

[Kreigh Tomaszewski]

Miners have unearthed an ultra-rare diamond with a second diamond inside it.

The inner gem is loose inside the first diamond, moving around freely — and
could be the first example of such a diamond ever found in the world.

This rare gem is believed to have formed around 800 million years ago.

It was dug up by Russian diamond miners Alrosa at the Nyurba mine in
Siberia.

https://www.news.com.au/technology/science/archaeology/ultrarare-diamond-with-another-diamond-inside-found-in-siberia/news-story/fc36004d80fd986200447dffab326b4f