Cosmic Diamond

While on the surface … appears to be an ordinary white dwarf, the star hides an intriguing secret. By studying …'s pulsations, the … crew has discovered its composition to be almost entirely crystallized carbon. This astronomical crystal lattice seems to have formed as the star cooled, originating in its gas-fusing core and growing outward over time. … is a diamond of cosmological proportions, glinting behind a white veil of oxygen and helium.

The command below will trigger the "Cosmic Diamond" event in Stellaris:

When this event fires, you can choose between the following option:

• Fascinating.
  • Add deposit: +4