If you really want to impress that intergalactic princess you’ve been dating, this would make for one heck of an engagement ring. Scientists have discovered a planet 4,000 light years from Earth that is made of diamond.
This illustration shows the alien planet PSR J1719-1438, where ultra-high pressures caused carbon to crystallize in the remnant of a dead star, forming the extrasolar world. The resulting planet is made of diamond and orbits a dense pulsing star with a radius smaller than that of our sun.
Alien Planet Made of Diamond Discovered