Astronomers have discovered a new planet, named "55 Cancri e" in the constellation of Cancer.
It's radius is twice that of the Earth (which makes it 8 times the size of earth), and it has the same density as Earth.
Astronomers figure that at least a third of the planet is made of diamond!
By my calculation, that makes 8x10^34 or 80 decillion carats!
Before you get out your diamond pick, the planet is approximately 230 trillion miles away, and over 9000 degrees Fahrenheit. .
To read more, here is a link: wikipedia - 55_Cancri_e