how are diamonds formed?
Diamonds are formed when carbon is compressed under high pressure. This usually happens underground regarding diamonds used in jewelry.  Diamonds are also used in commercial applications due to their hardness. These lower quality diamonds come from ancient meteor impacts. One such major impact occurred in Siberia Russia.
Which celestial body has the highest amount of diamonds inside it? Describe how these diamonds are formed in this body.
The white dwarf *BPM 37093*, located 50 light-years away in the constellation Centaurus, has a diameter of 2,500-miles (4,000 km) and may have a diamond core, which would make it one of the largest diamonds in the universe.

it was predicted that as a white dwarf cools, its material should crystallize, which caused the diamond core to form.