Nature Physics, via Discovery News features a new article which states that Neptune and Uranus may have oceans composed of......LIQUID DIAMONDS.
If De Beers gets a hold of this information, I think the funding for exploration and research may come a bit quicker. Jus sayin.
The article goes on to say that an ocean of diamonds could help explain the off-axis magnetic field of these two planets (Earth's is lined up with the north and south poles).
The article is quite interesting, explaining why little icebergs of diamond can float on a diamond sea, just like water.
Ahhhh... In other words, heaven.
Cheers - Martha